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1.
Int J Med Educ ; 13: 198-204, 2022 Jul 29.
Artigo em Inglês | MEDLINE | ID: mdl-35916647

RESUMO

Objectives: To determine whether Empathy, Emotional Intelligence, and Burnout scores differ by specialty in incoming residents. Methods: This is a single-site, prospective, cross-sectional study. Three validated survey instruments, the Jefferson Scale of Physician Empathy, Maslach Burnout Inventory, and Emotional and Social Competency Inventory, were written into a survey platform as a single 125-question Qualtrics survey. Over three academic years, 2015-2017, 229 incoming residents across all specialties were emailed the survey link during orientation. Residents were grouped by incoming specialty with anonymity assured. A total of 229 responses were included, with 121 (52.8%) identifying as female. Statistical analysis was performed using the Analysis of Variance or Kruskal-Wallis test, Chi-Square or Fisher's Exact test, and Independent Samples t-test or Mann Whitney U test. A Bonferroni correction was applied for pairwise comparisons. Results: Family Medicine had a higher median Jefferson Scale of Physician Empathy score (127) compared to Emergency Medicine (115), (U=767.7, p=0.0330). Maslach Burnout Inventory depersonalization and personal accomplishment subcategory scores showed a significant difference between specialties when omnibus tests were performed, but pairwise comparisons with emergency medicine residents showed no differences. Differences were found in the Maslach Burnout Inventory categories of Depersonalization (χ2(8, N=229) =15.93, p=0.0434) and Personal Accomplishment level (χ2(8, N=229) =20.80, p=0.0077) between specialties. Conclusions: Differences in measures of well-being exist across specialties, even prior to the start of residency training. The implication for educators of residency training is that some incoming residents, regardless of specialty, already exhibit troublesome features of burnout, and resources to effectively deal with these residents should be developed and utilized.


Assuntos
Esgotamento Profissional , Internato e Residência , Médicos , Esgotamento Profissional/epidemiologia , Esgotamento Profissional/psicologia , Estudos Transversais , Feminino , Humanos , Médicos/psicologia , Estudos Prospectivos , Inquéritos e Questionários
2.
J Matern Fetal Neonatal Med ; 35(25): 5943-5948, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33784937

RESUMO

BACKGROUND: Optimal glycemic control is vital in decreasing the risk of congenital birth defects and perinatal complications in women with diabetes. Although frequent blood glucose (BG) monitoring is essential during pregnancy, studies have highlighted poor compliance and falsification of glucose readings. We designed this study to assess whether a web-based glucose monitor improves compliance, glycemic control, and patient satisfaction. METHODS: This was a prospective study of 30 women with pre-gestational diabetes. After 4 weeks of using paper logs, patients were given a web-based glucose monitor. The primary outcome of interest was the average number of BG readings prior to and during web-based implementation. Secondary outcomes included glycemic control and patient satisfaction as determined by a pre- and post-study survey. RESULTS: The number of BG readings after 2 months using the web-based meter was similar to baseline. Hemoglobin A1c (HbA1c) significantly improved and there was a trend toward improved overall glycemic values. Survey results demonstrated satisfaction with the new system, although 20% of patients felt uncomfortable with glucose values being available to providers in real time. CONCLUSIONS: Compliance with BG monitoring was similar when comparing a web-based system with written logs. Since other studies have highlighted that some glucose data from written logs are falsified, actual compliance using the web-based monitor may be improved. This study demonstrates potential patient concerns using a web-based system. Further studies should explore patient reactions to providers having real-time access to online glycemic data given our survey results.


Assuntos
Automonitorização da Glicemia , Diabetes Mellitus , Feminino , Humanos , Gravidez , Automonitorização da Glicemia/métodos , Glicemia , Gestantes , Estudos Prospectivos , Satisfação Pessoal , Satisfação do Paciente , Hemoglobinas Glicadas/análise , Cooperação do Paciente , Internet
3.
J Pharm Pract ; 35(6): 940-946, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34060364

RESUMO

PURPOSE: To review interim data regarding longitudinal burnout and empathy levels in a single Doctor of Pharmacy class cohort. METHODS: Students were emailed an electronic survey during their first semester and annually at the end of each academic year for a total of 3 years (2017-2020). Validated survey tools included the Jefferson Scale of Empathy (JSE) and the Maslach Burnout Inventory (MBI) student version. The JSE survey consists of 20 questions, with higher scores denoting more empathy. The MBI student version contains 3 subscales: exhaustion (higher scores are worse), cynicism (higher scores are worse) and professional efficacy (higher scores are better). RESULTS: The median JSE score at the end of the third academic year (PY3) was 110, with females scoring significantly higher (114.5 vs. 103.5; p<0.02). A majority of the 62 students reported burn out (82.3%), scoring in the highest category for either exhaustion (76%) or cynicism (55%). A majority (66%) also reported a low or moderate professional efficacy score, a negative finding. Measures of student burnout increased after the start of the program and remained at the higher level each subsequent year (p<0.0001). In the Spring of 2020, during the COVID-19 pandemic, nearly every student had moderate or high levels of emotional exhaustion (97%) and cynicism (78%) as measured by the MBI. CONCLUSION: This interim data suggests high degrees of pharmacy student burnout. Empathy levels remained stable throughout the duration of the study. Pharmacy schools may need to focus on reform regarding well-being and prevention of burnout.


Assuntos
Esgotamento Profissional , COVID-19 , Estudantes de Farmácia , Feminino , Humanos , Empatia , Estudantes de Farmácia/psicologia , Pandemias , COVID-19/epidemiologia , Esgotamento Profissional/diagnóstico , Esgotamento Profissional/epidemiologia , Esgotamento Profissional/psicologia , Esgotamento Psicológico/epidemiologia , Inquéritos e Questionários
4.
Med Sci Educ ; 31(1): 29-35, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34457860

RESUMO

We report on a novel curriculum (Scholarly Excellence, Leadership Experiences, Collaborative Training [SELECT]) in an allopathic medical school designed to prepare students to be physician leaders while remaining empathetic by combating burnout. SELECT students were surveyed annually. The survey contained the Jefferson Scale of Empathy (JSE) and Maslach Burnout Inventory (MBI). In this cohort, empathy did not decrease, as measured by the JSE, and SELECT students' MBI Depersonalization burnout scores decreased after year 3. In summary, in this allopathic US medical school utilizing a novel curriculum, there was no significant decline in empathy after the third year of medical school. The SELECT program appears to mitigate the decline in empathy and increased Depersonalization burnout levels often seen at the end of the third year of medical school.

5.
Laryngoscope ; 131(12): 2773-2781, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34338303

RESUMO

OBJECTIVES/HYPOTHESIS: The objective of this study was to compare ventilation techniques utilized in microlaryngeal surgery. STUDY DESIGN: Retrospective cohort study. METHODS: Two-hundred surgeries performed from May 1, 2018 to March 1, 2020 and stratified as intubated, intermittently intubated (AAIV) or apneic. Patient demographics, comorbidities, anesthetic agents, intraoperative parameters/events, and complications were studied and compared across the three groups using inferential analyses. RESULTS: Median body mass index in the AAIV group was significantly higher (33 vs. 29; P = .0117). Median oxygen nadirs were lower in AAIV cases (81% vs. 91-92%) while CO2 peak measurements were lower (33 mmHg vs. 48 mmHg) in the fully apneic cohort which were significantly shorter cases (P < .0001). CO2 peak measurements were comparable between AAIV and intubated cohorts (median 48.5 mmHg vs. 48.0 mmHg). Median apnea times were significantly prolonged by 2-5.5 minutes using nasal cannula and THRIVE/Optiflow in fully apneic cases when compared to no supplementary oxygenation (P = .0013). Systolic blood pressures following insertion of laryngoscope were higher (159.5 vs. 145 mmHg) and postoperative diastolic pressures were lower (68.5 vs. 76.5 mmHg) in fully apneic cases than intubated cases. No differences existed between frequencies of complications. CONCLUSIONS: This study compares intubated, intermittently apneic, and fully apneic surgeries. No statistically significant differences were noted in comorbid conditions. While intraoperative hemodynamic fluctuations were more pronounced in the fully apneic cohort, and oxygenation distributions were lower in the AAIV cohort, no significant differences existed between events and complications. Apneic techniques are as safe and effective as traditional intubation. LEVEL OF EVIDENCE: 4 Laryngoscope, 131:2773-2781, 2021.


Assuntos
Cânula/efeitos adversos , Complicações Intraoperatórias/epidemiologia , Laringe/cirurgia , Microcirurgia/efeitos adversos , Respiração Artificial/efeitos adversos , Adulto , Idoso , Estudos de Viabilidade , Feminino , Hemodinâmica , Humanos , Complicações Intraoperatórias/etiologia , Masculino , Pessoa de Meia-Idade , Respiração Artificial/instrumentação , Respiração Artificial/métodos , Respiração Artificial/estatística & dados numéricos , Estudos Retrospectivos
6.
Gastrointest Endosc ; 93(5): 1133-1138, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33045222

RESUMO

BACKGROUND AND AIMS: Procedural standardization in endoscopic ultrasound-guided liver biopsy (EUS-LB) is necessary to obtain core biopsy specimens for accurate diagnosis. The objective of this study was to directly compare the diagnostic yield of 2 EUS-LB fine-needle biopsy (FNB) systems in vivo. METHODS: In this prospective, single-center study, 108 adult patients undergoing EUS-LB over a 1-year period were included. Each EUS-LB consisted of an EGD, followed by EUS-guided biopsy of the left lobe of the liver sequentially using 2 different 19-gauge needles: the fork-tip (SharkCore) and Franseen (Acquire) FNB systems. Specimens were then reviewed by a GI histopathologist to determine diagnostic adequacy as well as the number of complete portal tracts, specimen length, and degree of fragmentation. RESULTS: In 79.4% of cases, the fork-tip FNB system yielded a final diagnosis compared with 97.2% of the Franseen FNB specimens (P < .001). The mean number of complete portal tracts in the fork-tip FNB samples was 7.07 compared with 9.59 in the Franseen FNB samples (P < .001). The mean specimen length was 13.86 mm for the fork-tip FNB and 15.81 mm for the Franseen FNB (P = .004). Cores were intact in 47.6% of the fork-tip FNB samples and in 75.2% of the Franseen FNB samples (P = .004). CONCLUSIONS: In EUS-LB, we found that the 19-gauge Franseen FNB system resulted in a statistically significant increase in diagnostic adequacy compared with biopsy using the fork-tip FNB system.


Assuntos
Aspiração por Agulha Fina Guiada por Ultrassom Endoscópico , Agulhas , Adulto , Biópsia com Agulha de Grande Calibre , Humanos , Fígado/diagnóstico por imagem , Estudos Prospectivos
7.
J Emerg Med ; 59(1): 1-11, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32389434

RESUMO

BACKGROUND: Falls are among the leading cause of emergency department (ED) visits. OBJECTIVE: We set out to determine whether using a bedside decision aid could decrease falls. METHODS: This randomized controlled trial was conducted on those aged ≥ 65 years who were being discharged home and screened positive for a Centers for Disease Control and Prevention (CDC) fall risk factor. Control-arm subjects were given a CDC brochure about falls. The active-arm subjects received a personalized decision aid intervention. Both groups were followed up via telephone. RESULTS: A total of 200 subjects were enrolled and, after exclusions, 184 patients were analyzed. There were 76 male (41.3%) and 108 female (58.7%) subjects; 14% of the subjects chose to have their medications reviewed, 13.6% chose to have an eye examination, 22.8% chose to begin an exercise program, and the majority (44.6%) chose to have a home safety evaluation. Patients in the intervention arm chose more interventions to complete compared to control-arm subjects (p < 0.0001), but did not complete more interventions (p = 0.3387) and did not experience fewer falls compared to the control arm (p = 0.5675). At study conclusion, 73 subjects reported at least one fall during the study. CONCLUSIONS: Overall, in this study, subjects who had their fall-risk interventions facilitated by a decision tool chose to participate in interventions more than control subjects. However, they did not complete the interventions or fall less often than their counterparts in the control arm. Future study is needed to determine the effect of CDC screening guidelines and interventions facilitated by a decision aid on fall outcomes and their application in the ED population.


Assuntos
Acidentes por Quedas , Serviço Hospitalar de Emergência , Acidentes por Quedas/prevenção & controle , Idoso , Exercício Físico , Feminino , Humanos , Masculino , Alta do Paciente , Fatores de Risco
8.
Cureus ; 12(3): e7380, 2020 Mar 23.
Artigo em Inglês | MEDLINE | ID: mdl-32328390

RESUMO

Background In our institutions, there are two types of stents used: the Boston Scientific Wallflex (Marlborough, Massachusetts) and Merit Medical Endotek (South Jordan, Utah). So we performed this retrospective study to compare complication rates in various esophageal disorders to improve our quality of care. Methods Charts were reviewed to capture gender, indications of stent placement, stent length/diameter, age of the patient at the time of stent placement, length of hospital stay, physicians performing a procedure, and complications within 90 days of stent placement. Results A total of 67 patients (71.6% male) underwent stent placement (WallFlex 49.3% and Merit 50.8%) for malignant (68.7%) mainly esophageal obstruction by primary esophageal cancer (89.1%) and benign causes (31.3%) mainly esophageal leak (66.7%). Merit and WallFlex used in malignant conditions were 82.4% and 54.6%, respectively, and in benign conditions, they were 17.7% and 45.5%, respectively. The mean age at which endoscopy was performed was 64. Complications post Merit and WallFlex placement were 79.4% and 60.6%, respectively. Complications with malignant and benign conditions were 73.9% and 61.9%, respectively. Complications with 19, 18, and 23 mm diameters were 75.0%, 66.7%, and 69.4%, respectively. Complications with 120, 150, 100, 15, 12, 10 mm stent lengths were 84.6%, 58.3%, 58.8%, 80.0%, 75.0%, and 33.3%, respectively. Conclusion Our study showed that the Merit stent was mainly used, and the major indication of stent placement was a malignant condition. Major complications were seen when the reason for stent placement was a malignant condition, the diameter was 19 mm, the length was 120 mm, and the use of the Merit stent.

9.
J Intensive Care Soc ; 20(2): 155-160, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-31037108

RESUMO

PURPOSE: Extracorporeal membrane oxygenation use may predispose patients to developing conditions that require either consultation with a general surgeon or a general surgical procedure. We aimed to evaluate the incidence and outcomes of adult extracorporeal membrane oxygenation patients who underwent general surgical procedure. METHODS: This was a single institution retrospective study of adult extracorporeal membrane oxygenation patients from 2012 to 2015. Outcomes were compared between patients who underwent general surgical procedure with those that did not. RESULTS: Of the 115 patients, 54 (46.9%) required a general surgeon while 42 (36.5%) required a general surgical procedure. No significant differences were observed in mortality (35.7% vs. 46.6%; p = 0.256) and extracorporeal membrane oxygenation-related complications (45.7% vs. 32.5%; p = 0.175). Patients with general surgical procedure had longer extracorporeal membrane oxygenation duration (13 vs. 5 days; p < 0.0001), longer length of stay (36 vs. 15 days; p = 0.0005), more wound infections (19.05% vs. 5.5%; p = 0.029), more urinary tract infections (38.1% vs. 10.96%; p = 0.0006), and more pulmonary emboli (19.05% vs. 5.48%; p = 0.029). In general surgical procedure patients, no difference in bleeding complications was observed regardless of anti-coagulation status (29.4% vs. 16%; p = 0.44). CONCLUSION: Common general surgical procedures are safe and feasible in adult extracorporeal membrane oxygenation patients. Duration of extracorporeal membrane oxygenation was longer for patients requiring general surgical procedure. Despite the common use of anticoagulants, there was no increase in bleeding events in general surgical procedure patients.

10.
Clin Ther ; 41(6): 1020-1028, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-31084993

RESUMO

PURPOSE: The purpose of this study was to investigate potential differences by sex in the demographic and clinical characteristics of patients treated utilizing a sepsis electronic bundle order set. Risk factors for in-hospital mortality were also assessed. METHODS: Data on patients in whom the sepsis order set was initiated in the emergency department over a 16-month period were entered into the hospital database. Data were analyzed for differences by sex in demographic and clinical factors, treatment modalities, and in-hospital mortality. The Bonferroni correction was applied to account for multiple comparisons; α was set at 0.006 for sex differences. FINDINGS: A total of 2204 patients were included. Male and female cohorts were similar with regard to a variety of demographic and clinical factors, including age, Emergency Severity Index (ESI) levels 1 and 2, time to disposition, appropriateness of antibiotics, and total fluids given by weight. The ESI is an assessment score ranging from 1 to 5 (1 is emergent). There were modest differences in the source of infection (genitourinary was 4% more common in women; P = 0.03) and mode of arrival (men were 4% more likely to arrive by ambulance; P = 0.03). These differences did not achieve our predefined α of 0.006 when the Bonferroni correction was applied. Factors associated with in-hospital mortality were advanced age, arrival by ambulance, and an ESI level of 1 or 2 (all, P < 0.01). IMPLICATIONS: Women were more likely to have a genitourinary cause of sepsis and less likely to arrive by ambulance. Risk factors of in-hospital mortality were older age, arrival by ambulance, and an ESI level of 1 or 2, but not sex.


Assuntos
Sepse , Idoso , Idoso de 80 Anos ou mais , Feminino , Mortalidade Hospitalar , Hospitalização , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Sepse/epidemiologia , Sepse/mortalidade , Sepse/terapia
11.
Heart Lung ; 47(6): 626-630, 2018 11.
Artigo em Inglês | MEDLINE | ID: mdl-30166066

RESUMO

INTRODUCTION: Critically ill patients requiring extracorporeal membrane oxygenation (ECMO) are at increased risk for developing nosocomial infections owing to their underlying disease process along with numerous invasive monitoring devices. METHODS: We retrospectively analyzed the rate, type, pathogens, outcomes, and risk factors of nosocomial infections that developed during adult patients on ECMO at our institution from 2012-2015. RESULTS: Compared to current ELSO reported adult nosocomial infections rate of 20.5%, we report our rate of 26% (CI 17.2%-34.7%). No significant differences were observed in mortality (42.3% vs. 36.5%; p=0.598), and presence of either antibiotics prior to ECMO (57.7% vs. 56.7%; p=0.934) or culture-proven infection prior to ECMO (19.2% vs. 32.4%; p=0.201). Patients who developed nosocomial infections had longer duration of ECMO (13 vs. 5 days; p<0.001), longer length of stay (36.5 vs. 18.5 days; p=0.004), and more days on ventilator (29 vs. 12.5; p=0.002). Duration of ECMO (OR=1.20, 95% CI 1.02-1.39; p=0.020) and duration of ECMO greater than 10 days (OR=14.65, 95% CI 1.81-118.78; p=0.012) were independent risk factors for developing nosocomial infections. However, there was no difference in mortality when duration of ECMO >10 days was compared with ≤10 days (28.5% vs. 43.1%; p=0.154). CONCLUSION: Nosocomial infections have no effect on survival in adult ECMO patients. Presence of either antibiotics or infection prior to ECMO has no effect on developing nosocomial infections while on ECMO. Duration of ECMO longer than 10 days is a major risk factor for developing nosocomial infection.


Assuntos
Infecção Hospitalar/epidemiologia , Oxigenação por Membrana Extracorpórea , Adulto , Idoso , Antibacterianos , Infecção Hospitalar/microbiologia , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Pennsylvania/epidemiologia , Estudos Retrospectivos , Fatores de Risco , Fatores de Tempo , Ventiladores Mecânicos
12.
Clin Ther ; 40(8): 1375-1383, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-30064897

RESUMO

PURPOSE: The quality of clinical teaching in the emergency department from the students' perspective has not been previously described in the literature. Our goals were to assess senior residents' teaching ability from the resident/teacher and student/learner viewpoints for any correlation, and to explore any gender association. The secondary goal was to evaluate the possible impact of gender on the resident/student dyad, an interaction that has previously been studied only in the faculty/student pairing. METHODS: After approval by an institutional review board, a 1-year, grant-funded, single-site, prospective study was implemented at a regional medical campus that sponsors a 4-year dually approved emergency medicine residency. The residency hosts both medical school students (MSs) and physician's assistant students (PAs). Each student and senior resident working concurrently completed a previously validated ER Scale, which measured residents' teaching performance in 4 categories: Didactic, Clinical, Approachable, and Helpful. Students evaluated residents' teaching, while residents self-assessed their performance. The participants' demographic characteristics gathered included prior knowledge of or exposure to clinical teaching models. Gender was self-reported by participants. The analysis accounted for multiple observations by comparing participants' mean scores. FINDINGS: Ninety-nine subjects were enrolled; none withdrew consent. Thirty-seven residents (11 women) and 62 students (39 women) from 25 MSs and 6 PA schools were enrolled, completing 517 teaching assessments. Students evaluated residents more favorably in all ER Scale categories than did residents on self-assessments (P < 0.0001). This difference was significant in all subgroup comparisons (types of school versus postgraduate years [PGYs]). Residents' evaluations by type of student (MS vs PA) did not show a significant difference. PGY 3 residents assessed themselves higher in all categories than did PGY 4 residents, with Approachability reaching significance (P = 0.0105). Male residents self-assessed their teaching consistently higher than did female residents, significantly so on Clinical (P = 0.0300). Students' evaluations of the residents' teaching skills by residents' gender did not reveal gender differences. IMPLICATIONS: MS and PA students evaluated teaching by EM senior residents statistically significantly higher than did EM residents on self-evaluation when using the ER Scale. Students did not evaluate residents' teaching with any difference by gender, although male residents routinely self-assessed their teaching abilities more positively than did female residents. These findings suggest that, if residency programs utilize resident self-evaluation for programmatic evaluation, the gender of the resident may impact self-scoring. This cohort may inform future study of resident teaching in the emergency department, such as the design of future resident-as-teacher curricula.


Assuntos
Medicina de Emergência/educação , Internato e Residência , Assistentes Médicos/educação , Estudantes de Medicina , Ensino/normas , Adulto , Competência Clínica , Estudos de Coortes , Feminino , Humanos , Masculino , Estudos Prospectivos , Autoavaliação (Psicologia) , Fatores Sexuais , Inquéritos e Questionários , Adulto Jovem
13.
J Womens Health (Larchmt) ; 27(3): 258-270, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29148879

RESUMO

OBJECTIVE: To identify factors that influence women's participation in clinical research. METHODS: We administered a survey in outpatient and inpatient populations of Obstetrics and Gynecology facilities of six institutions located in four states. The survey included questions regarding any of the participant's past experiences in clinical research and the factors that would influence their participation in clinical research. Analyses included descriptive statistics and a Principal Component Analysis. RESULTS: The analysis included 3,773 respondents; 2,477 (68.1%) were pregnant. The majority of participants were Caucasian (1,453, 40.2%), followed by Hispanic (933, 25.8%), African American/black (744, 20.6%), other minorities (270, 7.5%), and multiracial (212, 5.9%). Ten potential motivating factors and 10 potential barriers were assessed. The greatest motivating factor was "how well research is explained" (mean = 2.87) while "risk of unknown side effects" was the greatest barrier (mean = 3.07) for women's participation in clinical trials. Among six helpful resources assessed, "material in my own language" was scored as the highest (mean = 2.8) in facilitating women's decision to participate. For "risk to the fetus/future fertility" as a barrier, pregnant women's score (mean = 3.25) was significantly higher than nonpregnant women's score (mean = 2.37). CONCLUSIONS: Overall, the risk of unknown side effects discourages women in general, and the risk to the fetus/future fertility discourages pregnant women the most from participating in clinical trials. However, explaining a study well and providing written material in the patients' own language may increase their willingness to participate.


Assuntos
Ensaios Clínicos como Assunto/psicologia , Barreiras de Comunicação , Tomada de Decisões , Participação do Paciente/psicologia , Gestantes , Grupos Raciais/estatística & dados numéricos , Adulto , Feminino , Ginecologia , Humanos , Motivação , Estudos Multicêntricos como Assunto , Obstetrícia , Gravidez , Análise de Componente Principal , Estudos Prospectivos , Inquéritos e Questionários , Estados Unidos
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