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1.
Ann Plast Surg ; 92(6): 688-693, 2024 Jun 01.
Article in English | MEDLINE | ID: mdl-38747560

ABSTRACT

BACKGROUND: At present, there is no golden standard for treatment of extracranial arteriovenous malformations (AVMs) and recurrence remains a major challenge with limited available evidence on the associated factors. This study aimed to evaluate the effectiveness of surgical treatment options, in terms of size reduction, symptoms, and early recurrence in patients treated surgically for AVMs. METHODS: A retrospective cohort study was conducted to evaluate patients with AVMs following surgical treatment in 2 centers from 2005 to 2020. Posttreatment lesion size and symptoms, as well as recurrence, were assessed. Multiple regression analysis was performed to identify factors associated with recurrence. RESULTS: Forty-four surgical treatment cases in 31 patients were assessed with a mean follow-up duration period of 67.9 ± 39.5 months. Treatment included total resection in 26 cases (59.1%) and partial resection 18 (40.9%), with free flap coverage used in 19 cases (43.2%). No acute exacerbation following treatment was observed in our cohort. Total resection significantly reduced posttreatment lesion size ( P < 0.001), symptoms ( P < 0.001), and recurrence (20.0%, P = 0.03). The recurrence rate was significantly higher after partial resection (73.7%, P = 0.03). Total resection was identified as an associated factor for significantly reduced AVM recurrence (odds ratio: 0.12; 95% confidence interval: 0.03, 0.52). However, the use of free flaps did not significantly reduce recurrence, post treatment size or improve AVM symptoms. CONCLUSIONS: Total resection is the optimal treatment for AVMs. Free flaps are useful in covering large defects but the regulative effect of free flap remains controversial.


Subject(s)
Arteriovenous Malformations , Recurrence , Humans , Retrospective Studies , Female , Male , Arteriovenous Malformations/surgery , Adult , Treatment Outcome , Adolescent , Middle Aged , Young Adult , Child , Cohort Studies
2.
Wound Repair Regen ; 2024 May 15.
Article in English | MEDLINE | ID: mdl-38747443

ABSTRACT

To evaluate the accuracy of AI chatbots in staging pressure injuries according to the National Pressure Injury Advisory Panel (NPIAP) Staging through clinical image interpretation, a cross-sectional design was conducted to assess five leading publicly available AI chatbots. As a result, three chatbots were unable to interpret the clinical images, whereas GPT-4 Turbo achieved a high accuracy rate (83.0%) in staging pressure injuries, notably outperforming BingAI Creative mode (24.0%) with statistical significance (p < 0.001). GPT-4 Turbo accurately identified Stages 1 (p < 0.001), 3 (p = 0.001), and 4 (p < 0.001) pressure injuries, and suspected deep tissue injuries (p < 0.001), while BingAI demonstrated significantly lower accuracy across all stages. The findings highlight the potential of AI chatbots, especially GPT-4 Turbo, in accurately diagnosing images and aiding the subsequent management of pressure injuries.

3.
Aesthetic Plast Surg ; 48(11): 2057-2063, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38589561

ABSTRACT

BACKGROUND: Chat generative pre-trained transformer (ChatGPT) is a publicly available extensive artificial intelligence (AI) language model that leverages deep learning to generate text that mimics human conversations. In this study, the performance of ChatGPT was assessed by offering insightful and precise answers to a series of fictional questions and emulating a preliminary consultation on blepharoplasty. METHODS: ChatGPT was posed with questions derived from a blepharoplasty checklist provided by the American Society of Plastic Surgeons. Board-certified plastic surgeons and non-medical staff members evaluated the responses for accuracy, informativeness, and accessibility. RESULTS: Nine questions were used in this study. Regarding informativeness, the average score given by board-certified plastic surgeons was significantly lower than that given by non-medical staff members (2.89 ± 0.72 vs 4.41 ± 0.71; p = 0.042). No statistically significant differences were observed in accuracy (p = 0.56) or accessibility (p = 0.11). CONCLUSIONS: Our results emphasize the effectiveness of ChatGPT in simulating doctor-patient conversations during blepharoplasty. Non-medical individuals found its responses more informative compared with the surgeons. Although limited in terms of specialized guidance, ChatGPT offers foundational surgical information. Further exploration is warranted to elucidate the broader role of AI in esthetic surgical consultations. LEVEL OF EVIDENCE V: Observational study under respected authorities. This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .


Subject(s)
Artificial Intelligence , Blepharoplasty , Blepharoptosis , Humans , Blepharoplasty/methods , Blepharoptosis/surgery , Female , Referral and Consultation , Counseling/methods , Male , Surgery, Plastic , Physician-Patient Relations , Adult
4.
Aesthetic Plast Surg ; 2024 Apr 29.
Article in English | MEDLINE | ID: mdl-38684536

ABSTRACT

BACKGROUND: ChatGPT is a free artificial intelligence (AI) language model developed and released by OpenAI in late 2022. This study aimed to evaluate the performance of ChatGPT to accurately answer clinical questions (CQs) on the Guideline for the Management of Blepharoptosis published by the American Society of Plastic Surgeons (ASPS) in 2022. METHODS: CQs in the guideline were used as question sources in both English and Japanese. For each question, ChatGPT provided answers for CQs, evidence quality, recommendation strength, reference match, and answered word counts. We compared the performance of ChatGPT in each component between English and Japanese queries. RESULTS: A total of 11 questions were included in the final analysis, and ChatGPT answered 61.3% of these correctly. ChatGPT demonstrated a higher accuracy rate in English answers for CQs compared to Japanese answers for CQs (76.4% versus 46.4%; p = 0.004) and word counts (123 words versus 35.9 words; p = 0.004). No statistical differences were noted for evidence quality, recommendation strength, and reference match. A total of 697 references were proposed, but only 216 of them (31.0%) existed. CONCLUSIONS: ChatGPT demonstrates potential as an adjunctive tool in the management of blepharoptosis. However, it is crucial to recognize that the existing AI model has distinct limitations, and its primary role should be to complement the expertise of medical professionals. LEVEL OF EVIDENCE V: Observational study under respected authorities. This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

5.
Hand Clin ; 40(2): 229-236, 2024 May.
Article in English | MEDLINE | ID: mdl-38553094

ABSTRACT

Vascular malformations in the extremities are a common site of occurrence; arteriovenous malformations (AVMs) are the least frequent of all vascular malformations, estimated at 5% to 20%. The first step in management is to perform a thorough clinical examination. Symptoms are assessed, and staging is performed using the Schobinger classification. Next, ultrasonography and contrast-enhanced computed tomography are used to confirm the diagnosis of AVM and to confirm the extent of the malformation. Surgery is the first-line treatment and reconstruction is performed. In cases where surgery is not feasible, embolization and sclerotherapy may be used to alleviate symptoms.


Subject(s)
Arteriovenous Malformations , Embolization, Therapeutic , Humans , Arteriovenous Malformations/surgery , Embolization, Therapeutic/methods , Hand/surgery , Microsurgery/methods , Tomography, X-Ray Computed , Treatment Outcome , Retrospective Studies
6.
Int J Low Extrem Wounds ; : 15347346241236811, 2024 Feb 28.
Article in English | MEDLINE | ID: mdl-38419470

ABSTRACT

Type 2 diabetes is a significant global health concern. It often causes diabetic foot ulcers (DFUs), which affect millions of people and increase amputation and mortality rates. Despite existing guidelines, the complexity of DFU treatment makes clinical decisions challenging. Large language models such as chat generative pretrained transformer (ChatGPT), which are adept at natural language processing, have emerged as valuable resources in the medical field. However, concerns about the accuracy and reliability of the information they provide remain. We aimed to assess the accuracy of various artificial intelligence (AI) chatbots, including ChatGPT, in providing information on DFUs based on established guidelines. Seven AI chatbots were asked clinical questions (CQs) based on the DFU guidelines. Their responses were analyzed for accuracy in terms of answers to CQs, grade of recommendation, level of evidence, and agreement with the reference, including verification of the authenticity of the references provided by the chatbots. The AI chatbots showed a mean accuracy of 91.2% in answers to CQs, with discrepancies noted in grade of recommendation and level of evidence. Claude-2 outperformed other chatbots in the number of verified references (99.6%), whereas ChatGPT had the lowest rate of reference authenticity (66.3%). This study highlights the potential of AI chatbots as tools for disseminating medical information and demonstrates their high degree of accuracy in answering CQs related to DFUs. However, the variability in the accuracy of these chatbots and problems like AI hallucinations necessitate cautious use and further optimization for medical applications. This study underscores the evolving role of AI in healthcare and the importance of refining these technologies for effective use in clinical decision-making and patient education.

7.
Ophthalmic Plast Reconstr Surg ; 40(3): 316-320, 2024.
Article in English | MEDLINE | ID: mdl-38133626

ABSTRACT

PURPOSE: This study aimed to demonstrate the performance of the popular artificial intelligence (AI) language model, Chat Generative Pre-trained Transformer (ChatGPT) (OpenAI, San Francisco, CA, U.S.A.), in generating the informed consent (IC) document of blepharoplasty. METHODS: A total of 2 prompts were provided to ChatGPT to generate IC documents. Four board-certified plastic surgeons and 4 nonmedical staff members evaluated the AI-generated IC documents and the original IC document currently used in the clinical setting. They assessed these documents in terms of accuracy, informativeness, and accessibility. RESULTS: Among board-certified plastic surgeons, the initial AI-generated IC document scored significantly lower than the original IC document in accuracy ( p < 0.001), informativeness ( p = 0.005), and accessibility ( p = 0.021), while the revised AI-generated IC document scored lower compared with the original document in accuracy ( p = 0.03) and accessibility ( p = 0.021). Among nonmedical staff members, no statistical significance of 2 AI-generated IC documents was observed compared with the original document in terms of accuracy, informativeness, and accessibility. CONCLUSIONS: The results showed that current ChatGPT cannot be used as a distinct patient education resource. However, it has the potential to make better IC documents when improving the professional terminology. This AI technology will eventually transform ophthalmic plastic surgery healthcare systematics by enhancing patient education and decision-making via IC documents.


Subject(s)
Artificial Intelligence , Blepharoplasty , Consent Forms , Informed Consent , Humans , Blepharoplasty/methods , Consent Forms/standards , Informed Consent/standards
9.
Article in English | MEDLINE | ID: mdl-38082731

ABSTRACT

Towards early detection of Alzheimer dementia (AD), this paper focuses on time-series instability of heart rate of AD patient, and proposes the AD detection method based on heart rate acquired by an unconstrained mattress sensor for daily life use. Through the human subject experiments on 124 days of heart rate of one AD patient and 39 days of heart rate of 21 healthy subjects, the following implication have been revealed: (1) an accuracy of the proposed AD detection method based on the time-series features of heart rate is approximately 98%; and (2) the time-series instability of heart rate is found in the rapid oscillation of heart rate (i.e., an increase/decrease of heart rate over 2 seconds).


Subject(s)
Alzheimer Disease , Humans , Alzheimer Disease/diagnosis , Heart Rate
11.
JPRAS Open ; 38: 147-151, 2023 Dec.
Article in English | MEDLINE | ID: mdl-37929067

ABSTRACT

Cryptotia is a congenital ear deformity characterized by the upper helix buried under the skin of the temporal region. Recurrence and inadequate correction of ear position are major complications following auricle reconstruction. Abnormalities of the auricular muscles are closely associated with cryptotia and considered to be the main cause. However, current corrective procedures focus on provision of additional skin and abnormal auricular muscle correction is considered supplementary. We report a surgical approach focused on the anatomical repositioning of the external auricular muscle insertions and skin cover with a mini flap. Two consecutive patients aged 6 and 14 years with mild cryptotia (minimal auricular cartilage deformity) were treated using this technique with a follow-up duration of 12-25 months. The abnormal insertion of the superior auricular muscle (SAM) to the superior helix was repositioned to its correct anatomical position below the eminence of the triangular fossa, effectively moving the ear posterosuperiorly. No complications occurred postoperatively, the increase in vertical length of the superior helix to the superior ear attachment was 7.8 and 7.9 mm at 6months. Both patients could wear facemasks comfortably without them sliding off and were satisfied with the esthetic results. Total follow-up duration was 3 years in Case 1 and 4.4 years in Case 2. Primary correction of the SAM to its anatomical position may be a useful method for reducing the size of the skin flaps required with minimal donor site morbidity in reconstruction of mild cryptotia.

12.
Ann Vasc Dis ; 16(2): 101-107, 2023 Jun 25.
Article in English | MEDLINE | ID: mdl-37359097

ABSTRACT

Objectives: Concerns among susceptible individuals, especially those with vascular malformations, have been raised by reports of thromboembolism following the administration of the SARS-CoV-2 vaccination against coronavirus disease 2019 (COVID-19). This study's goal was to assess any negative side effects that patients with vascular malformations who received the SARS-CoV-2 vaccine reported after receiving it. Materials and Methods: Through the three patient groups for vascular malformations in Japan in November 2021, a questionnaire was distributed to patients with vascular malformations who were 12 years of age or older. Multiple regression analysis was used to find relevant variables. Results: A total of 128 patients responded, representing a response rate of 58.8%. Ninety-six participants (75.0%) had received at least one dose of SARS-CoV-2 vaccine. In total, 84 (87.5%) and 84 (89.4%) subjects experienced at least 1 general adverse response following dose 1 and dose 2, respectively. Adverse reactions related to vascular malformations were reported by 15 participants (16.0%) after the 1st dose and 17 (17.7%) after the 2nd dose. Notably, no case of thromboembolism following vaccination was reported. Conclusion: The rate of vaccine-related adverse reactions in patients with vascular malformations is not different from that reported in the general population. There is no report of life-threatening responses in the research population.

13.
Sci Rep ; 13(1): 6902, 2023 04 27.
Article in English | MEDLINE | ID: mdl-37106059

ABSTRACT

Regeneration competent vertebrates such as newts and salamanders possess a weakened adaptive immune system characterized by multiple connections between the lymphatic system and the blood vascular system called lymphatic hearts. The role of lymphatic vasculature and these lymphaticovenous connections in regeneration is unknown. We used in-vivo near-infrared lymphangiography, ultra-high frequency ultrasonography, micro-CT lymphangiography, and histological serial section 3-dimentional computer reconstruction to evaluate the lymphatic territories of Cynops pyrrhogaster. We used our model and supermicrosurgery to show that lymphatic hearts are not essential for lymphatic circulation and limb regeneration. Instead, newts possess a novel intraosseous network of lymphatics inside the bone expressing VEGFR-3, LYVE-1 and CD-31. However, we were unable to show Prox-1 expression by these vessels. We demonstrate that adult newt bone marrow functions as both a lymphatic drainage organ and fat reservoir. This study reveals the fundamental anatomical differences between the immune system of urodeles and mammals and provides a model for investigating lymphatics and regeneration.


Subject(s)
Cardiovascular System , Lymphatic Vessels , Animals , Lymphatic System , Lymphatic Vessels/diagnostic imaging , Lymphatic Vessels/metabolism , Heart , Salamandridae , Mammals
14.
Surg Today ; 53(8): 957-963, 2023 Aug.
Article in English | MEDLINE | ID: mdl-37000256

ABSTRACT

PURPOSE: Chronic pain following breast surgery is a concern for breast cancer survivors; however, few studies have investigated the localization of persistent postoperative pain. We conducted this study to identify the location of pain following breast reconstruction. METHODS: A total of 213 Japanese women undergoing mastectomy only or breast reconstruction with a tissue expander/implant (TE/Imp) or a deep inferior epigastric perforator (DIEP) flap were enrolled in the study. Questionnaires related to pain location were sent to patients at the end of postoperative year (POY) 1 and POY 5. Multiple comparisons of the types of operation and cross-tabulation were made between the two time points. RESULTS: Surveys were completed by 107 of the women. Severe pain in the upper medial breast was significantly more common in POY 1 after DIEP reconstruction than after mastectomy only (P = 0.01), whereas abdominal pain was worse in POY 5 after DIEP reconstruction than after mastectomy only (P = 0.04). Pain in the medial arm and axilla had resolved better after TE/Imp (P = 0.03) and DIEP reconstruction (P = 0.01) than after mastectomy only by POY 5, but the difference between TE/Imp and DIEP reconstruction was not significant. CONCLUSIONS: These results show that localization of prolonged postoperative pain following breast reconstruction differs depending on the surgical strategy.


Subject(s)
Breast Neoplasms , Chronic Pain , Mammaplasty , Perforator Flap , Female , Humans , Mastectomy/adverse effects , Mastectomy/methods , Breast Neoplasms/surgery , Chronic Pain/epidemiology , Chronic Pain/etiology , Prospective Studies , Perforator Flap/surgery , Mammaplasty/adverse effects , Mammaplasty/methods , Pain, Postoperative/epidemiology , Pain, Postoperative/etiology , Retrospective Studies
15.
Ann Plast Surg ; 90(3): 209-213, 2023 03 01.
Article in English | MEDLINE | ID: mdl-36796041

ABSTRACT

ABSTRACT: Hideyo Noguchi is one of the most famous scientists in Japan's history, and his portrait has adorned the ¥1,000 banknotes since 2004. He had a childhood burn injury resulting in severe hand scarring and contracture that plagued his early life and education.The resulting hand deformity required 3 separate reconstructions with the third and most complex surgery performed by Professor Tsugishige Kondo just before Noguchi's final medical doctor license examination in 1897. In this surgery, Kondo released the contractures using the first radial forearm flap performed in Japan long before the establishment of plastic surgery in the country.Reviewing the history of Kondo, we find that he likely learned the art of reconstructive surgery along with many other surgical techniques during his stay in Europe from 1891 to 1896 where he was mentored by 4 prominent surgeons of the era: Christian Albert Theodor Billroth, Vincenz Czerny, James Israel, and Carl Nicoladoni. During this period, Czerny reported performing the world's first breast reconstruction using lipoma transfer, and Nicoladoni performed the world's first thumb reconstruction with a chest flap and with toe-to-thumb transfer. Kondo may have watched these world's first operations and may have also been taught these innovative techniques including the forearm flap directly by these pioneers. He returned to Japan and successfully applied these reconstructive surgery methods in his practice and teaching, as evidenced by the landmark surgery of Hideyo Noguchi's hand, and laid the foundations for the development of plastic surgery in Japan.


Subject(s)
Contracture , Plastic Surgery Procedures , Surgery, Plastic , Male , Humans , Child , Surgery, Plastic/history , Forearm/surgery , Japan , East Asian People
16.
Asian J Surg ; 46(1): 150-155, 2023 Jan.
Article in English | MEDLINE | ID: mdl-35221188

ABSTRACT

BACKGROUND: The objective of this study was to identify response patterns related to sexual well-being following breast operations in the Japanese population. METHODS: Patient-reported outcomes were analyzed at 1 year and 5 years after breast operations, including breast reconstruction, for Japanese women at a single center, with a focus on "Sexual well-being" in BREAST-Q. Response analysis and multiple regression analysis were performed. The scores at years 1 and 5 were also compared across three types of operation: mastectomy only, TE/Imp, and DIEP. RESULTS: The response rate for Sexual well-being on BREAST-Q in the prospective cohort of patients with breast cancer dropped from 60.0% in postoperative year 1-34.3% in year 5. The mean score for Sexual well-being increased from 32 (year 1) to 38 (year 5). There were significant differences between respondents and non-respondents in age at year 1 (P = 0.007) and for mastectomy only (P = 0.01) and TE/Imp (P = 0.03) at year 5. In regression analysis, only DIEP was positively associated with Sexual well-being at year 1 (p < 0.001) and there were no significant factors at year 5. Among the operative procedures, scores after DIEP were significantly better than those after mastectomy only at year 1 (p < 0.001), but there was no difference at year 5. There were no significant changes from year 1 to year 5 for each operation. CONCLUSIONS: A low response rate for Sexual well-being on BREAST-Q was found in Japanese women at 5 years postoperatively. This suggests the need for development of a modified evaluative scale that avoids nonresponse bias and considers ethnic differences.


Subject(s)
Breast Neoplasms , Mammaplasty , Female , Humans , Breast Neoplasms/surgery , East Asian People , Mammaplasty/methods , Mastectomy/methods , Patient Satisfaction , Prospective Studies , Quality of Life
17.
JPRAS Open ; 34: 152-157, 2022 Dec.
Article in English | MEDLINE | ID: mdl-36304070

ABSTRACT

Objective: Negative Pressure Wound Therapy (NPWT) is increasingly being used as a major method of skin graft dressing and fixation. Negative Pressure Wound Therapy with Instillation and Dwelling (NPWTi-d) further enhances wound care over regular NPWT. However, only a few reports have been made on its use for skin graft fixation due to concerns of graft maceration or detachment. We used NPWTi-d to fix skin grafts for 4 cases of severely contaminated complex posttraumatic wounds. Methods: The age ranged from 37 to 72 years, and included trauma of the lower leg, forearm dog bite and incomplete amputations of the upper arm and hand respectively. The mean instillation saline volume per wound size was 0.21 ml/cm2 and the dwelling time reduced to 3 min. The NPWTi-d skin graft fixation was removed after about a week. Results: All the grafts healed well and no complications such as infection or contracture were observed. Follow-up time was 1 -8 months. Conclusions: NPWTi-d may be a useful option for fixing skin grafts particularly in contaminated wounds with a high risk of infection.

18.
Neurol Int ; 14(3): 727-737, 2022 Sep 13.
Article in English | MEDLINE | ID: mdl-36135996

ABSTRACT

(1) Objective: To evaluate the usefulness of a three-dimensional motion-analysis system (AKIRA®) as a quantitative measure of motor symptoms in patients with Parkinson's disease (PD). (2) Method: This study included 48 patients with PD. We measured their motion during 2 m of walking using AKIRA®, we calculated the tilt angles of the neck and trunk, ankle height, and gait speed, then we compared these parameters with the MDS-UPDRS and the Hoehn and Yahr scale. Furthermore, we measured these AKIRA indicators before and after 1 year of observation. (3) Results: The forward tilt angle of the neck showed a strong correlation with the scores on parts II, III, and the total MDS-UPDRS, and the tilt angle of the trunk showed a moderate correlation with those measures. The lateral tilt angle of the trunk showed a moderate correlation with a freezing of the gait and a postural instability. Regarding changes over the course of 1 year (n = 34), the total scores on part III of the MDS-UPDRS and the forward tilt angle of the neck improved, while the lateral tilt angle of the trunk worsened. (4) Conclusion: Taken together, the forward and lateral tilt angles of the neck and trunk as measured by AKIRA® can be a candidate for quantitative severity index in patients with PD.

19.
Breast Cancer ; 29(6): 1133-1139, 2022 Nov.
Article in English | MEDLINE | ID: mdl-36018439

ABSTRACT

BACKGROUND: Chronic pain is a major complication following breast surgery including breast reconstruction. We previously examined prospective patient-specific and medical/surgical factors that predict chronic pain a year after breast surgery in the Japanese population. Five-year survivorship is essential for breast cancer patients. This report is a 4-year follow-up study following the previous research. METHODS: A follow-up observation study was performed 5 years after breast operations. The subjects were patients who underwent breast surgery, including tissue expander/implant (TE/implant), DIEP procedures and mastectomy only. Pain at 5 years was assessed using the Japanese Version of the Short-Form McGill Pain Questionnaire (SF-MPQ-JV). A multiple linear regression model was used to examine the relationships of clinical factors with chronic pain. RESULTS: Questionnaires were completed by 132 subjects. No factor related to chronic pain was significantly related to the MPQ pain ratings. Among patient characteristics, a psychotic or neurological medical history was related to significantly lower visual analog scale (p = 0.02) and present pain index (p = 0.04) scores. A history of chemotherapy and/or hormone therapy was significantly associated with the frequency of use of pain medication postoperatively (p = 0.05) and effect on the social life of the patients (p = 0.02). CONCLUSIONS: A psychotic or neurological history and a history of chemotherapy and/or hormone therapy were identified as risk factors for chronic pain after breast surgery, but the type of operation was not associated with chronic pain.


Subject(s)
Breast Neoplasms , Chronic Pain , Mammaplasty , Perforator Flap , Humans , Female , Mastectomy/adverse effects , Mastectomy/methods , Prospective Studies , Follow-Up Studies , Japan/epidemiology , Breast Neoplasms/surgery , Breast Neoplasms/etiology , Chronic Pain/epidemiology , Chronic Pain/etiology , Perforator Flap/surgery , Mammaplasty/methods , Risk Factors , Hormones
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