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1.
Int J Mol Sci ; 23(14)2022 Jul 15.
Article in English | MEDLINE | ID: mdl-35887149

ABSTRACT

Squamous cell carcinoma is the main histological tumor type in the upper aerodigestive tract (UADT), including the esophagus (ESCC) and the head and neck sites, as well as the oral cavity (OCSCC), larynx (LSCC) and oropharynx (OPSCC). These tumors are induced by alcohol and tobacco exposure, with the exception of a subgroup of OPSCC linked to human papillomavirus (HPV) infection. Few genes are frequently mutated in UADT tumors, pointing to other molecular mechanisms being involved during carcinogenesis. The F-box and leucine-rich repeat protein 7 (FBXL7) is a potential tumor-suppressing gene, one that is frequently hypermethylated in pancreatic cancer and where the encoded protein promotes the degradation of AURKA, BIRC5 and c-SRC. Thus, the aim of this study was to evaluate the methylation and expression profile of FBXL7 in the UADT and the gene's association with the clinical, etiological and pathological characteristics of patients, as well as the expression of its degradation targets. Here we show that the FBXL7 gene's body is hypomethylated in the UADT, independently of histology, but not in virus-associated tumors. FBXL7 body methylation and gene expression levels were correlated in the ESCC, LSCC, OCSCC and OPSCC. Immunohistochemistry analysis showed that FBXL7 protein levels are not correlated with the levels of its degradation targets, AURKA and BIRC5, in the UADT. The high discriminatory potential of FBXL7 body hypomethylation between non-tumor and tumor tissues makes it a promising biomarker.


Subject(s)
Carcinoma, Squamous Cell , F-Box Proteins/metabolism , Head and Neck Neoplasms , Papillomavirus Infections , Aurora Kinase A/genetics , Carcinoma, Squamous Cell/pathology , DNA Methylation , Head and Neck Neoplasms/complications , Head and Neck Neoplasms/genetics , Humans , Papillomavirus Infections/complications , Respiratory System/pathology
2.
Cancer ; 120(8): 1187-93, 2014 Apr 15.
Article in English | MEDLINE | ID: mdl-24615735

ABSTRACT

BACKGROUND: Cisplatin-based chemoradiation (CRT) is the standard treatment for patients with locally advanced cervical cancer. Epidermal growth factor receptor (EGFR) is frequently overexpressed in cervical cancer, and EGFR inhibition itself has antitumor effects and potentiates CRT. Results of a previous phase 1 trial of the EGFR inhibitor erlotinib combined with cisplatin-based CRT (E + CRT) recommended a phase 2 erlotinib dose of 150 mg/day. METHODS: Eligibility criteria included International Federation of Gynecology and Obstetrics stage IIB to IIIB epidermoid cervical cancer, no prior therapy, and an Eastern Cooperative Oncology Group performance status of 0 to 2. Patients received erlotinib at a dose of 150 mg/day 1 week before and in combination with cisplatin (40 mg/m(2) administered weekly for 5 cycles) and radiotherapy (4500 centigrays in 25 fractions), followed by brachytherapy (4 fractions at a dose of 600 centigrays weekly). RESULTS: A total of 36 patients completed treatment with E + CRT. The median duration of therapy was 77 days and the median follow-up period was 59.3 months. The therapy was well tolerated overall, and 34 patients (94.4%) achieved a complete response. The 2-year and 3-year cumulative overall and progression-free survival rates were 91.7% and 80.6% and 80% and 73.8%, respectively. CONCLUSIONS: Treatment with E + CRT appears to be safe and exerts significant activity against locally advanced cervical cancer. To the best of the authors' knowledge, this is the first study to date to demonstrate that a target agent has promising activity against locally advanced cervical cancer.


Subject(s)
Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Chemoradiotherapy , ErbB Receptors/antagonists & inhibitors , Uterine Cervical Neoplasms/therapy , Adult , Aged , Brachytherapy , Cisplatin/administration & dosage , Cisplatin/adverse effects , Erlotinib Hydrochloride , Female , Humans , Middle Aged , Neoplasm Staging , Protein Kinase Inhibitors/administration & dosage , Protein Kinase Inhibitors/adverse effects , Quinazolines/administration & dosage , Quinazolines/adverse effects , Uterine Cervical Neoplasms/mortality , Uterine Cervical Neoplasms/pathology
3.
Int J Gynecol Cancer ; 23(4): 743-8, 2013 May.
Article in English | MEDLINE | ID: mdl-23552805

ABSTRACT

OBJECTIVE: Cervical cancer represents the third most commonly diagnosed cancer and the fourth cause of cancer death in women worldwide. In the palliative scenario, the combination of paclitaxel and cisplatin is widely used. Carboplatin is also an active agent in cervical cancer, and its association with paclitaxel could represent a well-tolerated, less toxic, and effective therapeutic option. The objective of this study was to evaluate response rate, progression-free survival, overall survival, and toxicity of carboplatin and paclitaxel in first palliative line for cervical cancer. METHODS: A retrospective search of database at Brazilian National Cancer Institute was performed, and all patients with persistent/recurrent and advanced cervical cancer treated with paclitaxel and carboplatin in first palliative line, between August 2008 and January 2010, were included. RESULTS: A total of 153 women were enrolled. Objective responses were documented in 34.6% (5.2% of complete responses and 29.4% of partial responses). With a median follow-up of 27.8 months, the median progression-free survival was 5.2 months, and the median overall survival was 10.63 months. The most common toxicity was myelosuppression: grades 3 and 4 anemia, neutropenia, and thrombocytopenia observed in 43.0%, 17.8%, and 9.2% of the cases, respectively. Neurotoxicity was presented by 30.7% of the patients. Renal toxicity was detected in 21.9% of the patients, but only 4.0% were grade 3, and none were grade 4. CONCLUSIONS: This retrospective study has demonstrated that paclitaxel-carboplatin is an active and well-tolerated regimen for the treatment of advanced cervical cancer.


Subject(s)
Adenocarcinoma/drug therapy , Antineoplastic Agents, Phytogenic/therapeutic use , Carboplatin/therapeutic use , Carcinoma, Squamous Cell/drug therapy , Neoplasm Recurrence, Local/drug therapy , Paclitaxel/therapeutic use , Uterine Cervical Neoplasms/drug therapy , Adult , Aged , Aged, 80 and over , Brazil , Female , Humans , Middle Aged , Retrospective Studies , Young Adult
4.
Pulmäo RJ ; 20(2): 42-47, 2011. ilus
Article in Portuguese | LILACS | ID: lil-607342

ABSTRACT

Tumores localmente avançados como forma de apresentação inicial dos tumores localizados na árvore traqueobrônquica não são um fenômeno raro. Os sintomas resultantes dessas lesões são comuns de câncer do pulmão e têm um impacto negativo significativo na qualidade de vida dos pacientes portadores de neoplasias pulmonares. As opções terapêuticas são múltiplas, sendo no entanto dependentes de variáveis, como a terapêutica inicial utilizada, o local da recorrência, a sintomatologia e as condições clínicas dos pacientes. Os objetivos principais foram demonstrar as principais vantagens terapêuticas da braquiterapia endobrônquica com alta taxa de dose em tumores da árvore respiratória. No período de 1998 a 2009, 42 pacientes com neoplasia pulmonar foram tratados paliativamente com braquiterapia endobrónquica com alta taxa de dose, com um total de 110 inserções, no Instituto Nacional de Câncer, Rio de Janeiro. A regressão endoscópica completa do tumor foi observada em 75% dos pacientes. A regressão tumoral teve relação direta com a melhora dos sintomas, especialmente da dispnéia. A sobrevida global foi de 56%, em 15 meses de acompanhamento. Não houve nenhum caso de hemoptise volumosa ou fatal, fistulas ou abscessos. Desse modo, concluimos que a braquiterapia endobrônquica com alta taxa de dose, é um excelente método com tratamento paliativo para os pacientes portadores de neoplasias pulmonares obstrutivas.


Locally advanced tumors as the initial form of presentation of tumors in the tracheobronchial tree are not a rare event. Symptoms resulting from these tumors are common in lung cancer and have a significant negative impact on quality of life of patients with lung cancer. The therapeutic options are manifold, but being dependent on variables such as the initial therapy used, the site of recurrence, the symptoms and the clinical condition of patients. The main objectives were to demonstrate the main advantages of brachytherapy treatment with high dose rate in tumors of the respiratory tree. In the period 1998-2009, 42 patients with lung cancer were treated with brachytherapy palliatively with high dose rate, with a total of 110 insertions, at the National Cancer Institute, Rio de Janeiro. The endoscopic complete tumor regression was observed in 75% of patients. The tumor regression was directly related to improvement of symptoms, especially dyspnea. Overall survival was 56% in 15 months monitoring. There were no cases of massive or fatal hemoptysis, fistulae or abscess. Thus, we conclude thatbrachytherapy with high dose rate, is an excellent method to palliative treatment for patients with obstructive lung cancers.


Subject(s)
Humans , Male , Female , Palliative Care , Brachytherapy/methods , Iridium , Lung Neoplasms/diagnosis , Lung Neoplasms/therapy , Diagnostic Techniques, Respiratory System , Quality of Life , Therapeutics
5.
Pulmäo RJ ; 19(1/2): 45-49, 2010. ilus
Article in Portuguese | LILACS | ID: lil-607371

ABSTRACT

Os sintomas resultantes das lesões endobrônquicas são comuns nos pacientes portadores de câncer do pulmão e tem um impacto negativo significativo na qualidade de vida. Inúmeras opções terapêuticas estão disponíveis para o tratamento paliativo destes pacientes: braquiterapia endobrônquica, colocação de próteses endobrônquicas, ressecção com laser ou eletrocautério ou a radioterapia convencional. Esta revisão tem como objetivos descrever o método e o papel da braquiterapia endobrônquica em pacientes portadores de neoplasia pulmonar e mostrar nossa experiência com o método em nossa instituição.


Symptoms resulting from tumors extending to the endobronchial wall are common in patients with lung cnacer and significantly impacts quality of life. A number of treatment options are available for palliation, including endobronchial brachytherapy, stent placement, laser photoresection, eletrocautery resection and external-beam radiation therapy. This reviewwill focus on the methodology and role of endobronchial brachytherapy in patients with lung cancer and will review ourexperience with this procedure.


Subject(s)
Humans , Male , Female , Palliative Care , Brachytherapy , Lung Neoplasms , Brachytherapy , Brachytherapy/history , Brachytherapy/methods , Quality of Life
6.
Int J Radiat Oncol Biol Phys ; 67(3): 933-41, 2007 Mar 01.
Article in English | MEDLINE | ID: mdl-17293242

ABSTRACT

PURPOSE: To compare the numerous external radiotherapy (RT) techniques for the treatment of retinoblastoma, as well as an intensity-modulated RT (IMRT) technique. The latter was elaborated to evaluate the potential dose reduction in the surrounding tissue, as well as the potential avoidance of subdosage in the ora serrata retinae. METHODS AND MATERIALS: A 2-year-old patient with unilateral retinoblastoma underwent CT. With the aid of an ophthalmologist, the ocular structures were delimited, and 13 techniques described in published reports were reproduced on three-dimensional planning software and identified according to their authors. A technique with four noncoplanar fields using IMRT was also elaborated. These techniques were compared according to the dose to the ora serrata retinae, lens, orbit (volume that received a dose of >or=20 Gy), vitreous, optic nerve, lacrimal gland (volume that received a dose of >or=34 Gy), and cornea and according to their ease of reproducibility. RESULTS: The techniques that attained the therapeutic dose to the ora serrata retinae were the IMRT technique and the techniques of Haye, Cassady, Cormack, and al-Beteri. The Cormack technique had the lowest volume that received a dose of >or=20 Gy in the orbit, followed by the IMRT technique. The IMRT technique also achieved the lowest volume that received a dose of >or=34 Gy (14%) in the lacrimal gland. The Abramson/McCormick/Blach, Cassady, Reese, and Schipper techniques were the easiest to reproduce and the Chin the most complex. CONCLUSION: Retinoblastoma treatment with IMRT has an advantage over the other techniques, because it allows for the greatest reduction of dose to the orbit and lacrimal gland, while maintaining the therapeutic dose to the ora serrata retinae and vitreous.


Subject(s)
Retinal Neoplasms/radiotherapy , Retinoblastoma/radiotherapy , Child, Preschool , Humans , Lacrimal Apparatus/radiation effects , Lens, Crystalline/radiation effects , Optic Nerve/radiation effects , Radiation Injuries/prevention & control , Radiotherapy/methods , Radiotherapy Dosage , Radiotherapy Planning, Computer-Assisted , Radiotherapy, Intensity-Modulated/methods , Reproducibility of Results , Retina/radiation effects , Retinal Neoplasms/diagnostic imaging , Retinoblastoma/diagnostic imaging , Tomography, X-Ray Computed , Vitreous Body/radiation effects
7.
Rev. AMRIGS ; 44(1/2): 47-9, jan.-jun. 2000. graf
Article in Portuguese | LILACS | ID: lil-285249

ABSTRACT

O carcinoma de colo uterino ocupa o terceiro lugar em frequência entre os tumores malignos na mulher brasileira. Realizou-se estudo transversal retrospectivo, no período de maio de 1995 a abril de 1999, avaliando-se 1.264 casos de lesões intra-epiteliais de alto e baixo grau e carcinoma invasor de colo uterino, admitidos no Instituto de Patologia de Passo Fundo. O objetivo deste estudo consiste em estabelecer o perfil etário das pacientes acometidas por estas lesões na região do Planalto Médio do Rio Grande do Sul neste período, a fim de determinar a idade de início do rastreamento do carcinoma de colo uterino


Subject(s)
Humans , Female , Uterine Cervical Dysplasia/prevention & control , Uterine Neoplasms/epidemiology , Carcinoma, Squamous Cell , Cross-Sectional Studies
8.
Rev. méd. Hosp. Säo Vicente de Paulo ; 11(26): 75-6, jan.-jun. 2000. ilus
Article in Portuguese | LILACS | ID: lil-285503

ABSTRACT

Os carcinomas de células renais representam aproximadamente 1 a 3 por cento de todas as neoplasias viscerais. O carcinoma papilífero de células renais constitui 10 por cento dos carcinomas renais. Relata-se o caso de jovem de 17 anos que apresentou massa abdominal em hipocôndrio direito sem queixas urinárias ou sistêmicas. A tomografia de abdomen mostrou tumor em polo superior do rim direito, Realizou-se nefrectomia radical e linfadectomia, firmando-se diagnóstico histopatológico de carcinoma de células renais papilífero diferenciado


Subject(s)
Humans , Female , Adolescent , Kidney Neoplasms/classification , Kidney Neoplasms/diagnosis , Carcinoma, Papillary/surgery , Nephrectomy
9.
Rev. méd. Hosp. Säo Vicente de Paulo ; 11(26): 77-9, jan.-jun. 2000. ilus
Article in Portuguese | LILACS | ID: lil-285504

ABSTRACT

umores glômicos são neoplasias dolorosas, originados de shunts arteriovenosos, podendo ocorrer em várias partes do corpo. O objetivo deste artigo é apresentar possíveis manifestações clínicas, achados histopatológicos e tratamento desta patologia


Subject(s)
Humans , Male , Adult , Glomus Tumor/physiopathology , Glomus Tumor/diagnosis , Glomus Tumor/therapy
10.
Rev. méd. Hosp. Säo Vicente de Paulo ; 11(25): 24-7, jul.-dez. 1999.
Article in Portuguese | LILACS | ID: lil-285473

ABSTRACT

A trombose venosa profunda pode ocorrer na gravidez. A síndrome pós-flebítica e a hipertensão venosa crônica são sequelas da trombose venosa profunda. Assim, a prevenção e o tratamento da trombose venosa profunda são importantes na redução da morbi-mortalidade materna. Este artigo revisa a patogênese, aspectos clínicos, diagnóstico e tratamento da trombose venosa profunda na gravidez


Subject(s)
Humans , Female , Pregnancy , Venous Thrombosis/diagnosis , Venous Thrombosis/physiopathology , Venous Thrombosis/therapy , Venous Thrombosis/epidemiology , Venous Thrombosis/prevention & control , Pregnancy Complications, Cardiovascular , Hypertension/etiology , Postphlebitic Syndrome/etiology
11.
Rev. méd. Hosp. Säo Vicente de Paulo ; 11(24): 23-5, jan.-jun. 1999. graf
Article in Portuguese | LILACS | ID: lil-245567

ABSTRACT

Os tumores de apendice são incomuns, achados incidentais em cirurgias ou autópsias. Realizou-se estudo retrospectivo onde se observou a ocorrência de 17 tumores primários de uma casuística de 2503 apêndices (0,68 por cento). Ocorreram 54,54 por cento de tumores benignos e 45,45 por cento de tumores malignos. Devido à baixa suspeição clínica e radiológica, o exame anatomopatológico firma o diagnóstico


Subject(s)
Humans , Appendiceal Neoplasms/diagnosis , Retrospective Studies , Appendix/pathology
12.
Rev. méd. Hosp. Säo Vicente de Paulo ; 11(24): 27-9, jan.-jun. 1999. graf
Article in Portuguese | LILACS | ID: lil-245568

ABSTRACT

Avaliou-se retrospectivamente os prontuários de 1861 pacientes atendidos no Ambulatório Central da UPF, estabelecendo-se um perfil destes pacientes, bem como das entidades clínicas mais comuns


Subject(s)
Humans , Outpatients , Retrospective Studies , Outpatient Clinics, Hospital
13.
Rev. méd. Hosp. Säo Vicente de Paulo ; 11(24): 39-41, jan.-jun. 1999. tab
Article in Portuguese | LILACS | ID: lil-245571

ABSTRACT

A maioria dos corpos estranhos instala-se no trato gastrointestinal (92,5 por cento). Nos EUA, a incidência anual é de 120:100.00 habitantes, sendo responsável por 1.500 mortes anuais. Ocorre mais frequentemente em crianças com 1 e 3 anos. A ingesta pode ser intencional (Síndrome de Body-Paker) ou acidental. Cerca de 90 por cento dos corpos estranhos são eliminados espontaneamente, sem complicações. Apenas 1 por cento dos casos necessitam de procedimento cirúrgico. Os autres discutem a abordagem diagnóstica e terapêutica frente ao paciente com corpo estranho no trato gastrointestinal superior. A suspeita de corpo estranho baseia-se na história da ingestão de objetos. A sintomatologia mais comum é a odinofagia, disfagia, "engasgo", sialorréia, regurgitação, dor local e sensação de corpo estranho, a maioria dos quais é radiopaco. Os objetos radiotransparentes são diagnosticados por meio de esofagogastroduodenoscopia ou do exame com contraste hidrosolúvel. O tratamento varia de acordo com o tipo de corpo estranho e com sua localização


Subject(s)
Humans , Foreign Bodies/therapy , Endoscopy, Digestive System , Digestive System/injuries
14.
Rev. bras. neurol ; 35(3): 41-7, maio-jun. 1999. tab
Article in Portuguese | LILACS | ID: lil-238827

ABSTRACT

Este artigo apresenta um Sistema Baseado em Conhecimentos (SBC) para auxiliar no Diagnóstico Clínico das Crises Epiléticas (CE). Foi baseado na classificaçäo por tipo de crise da International League Against Epilepsia/ILAE81. O objetivo do sistema é obter um conjunto de sintomas apresentado pelo paciente, classificar o tipo de crise e indicar um provável diagnóstico. Para fazer o tratamento da incerteza será utilizado o Teorema de Bayes. O modo de classificaçäo utilizou as técnicas da Inteligência Artificial Simbólica através do Shell Kappa-PC e o paradigma de Orientaçäo a objetos


Subject(s)
Humans , Male , Female , Bayes Theorem , Epilepsy/diagnosis , Artificial Intelligence
15.
Rev. méd. Hosp. Säo Vicente de Paulo ; 10(23): 31-4, jul.-dez. 1998. tab
Article in Portuguese | LILACS | ID: lil-238352

ABSTRACT

Apresenta-se um sistema baseado em conhecimentos, para auxiliar no diagnóstico clínico das crises epilépticas, tendo como modêlo a classificação por tipo de crise da International League against Epilepsia. O objetivo do sistema é obter um conjunto de sintomas apresentado pelo paciente, classificar o tipo de crise e indicar o provável diagnóstico...


Subject(s)
Humans , Epilepsy/diagnosis , Artificial Intelligence , Epilepsy/classification , Medical Informatics Applications , Diagnosis, Computer-Assisted
16.
Rev. méd. Hosp. Säo Vicente de Paulo ; 10(22): 48-50, jan.-jun. 1998. ilus
Article in Portuguese | LILACS | ID: lil-224988

ABSTRACT

O termo Amiloidose refere-se a um grupo de condiçöes clínicas caracterizadas pelo depósito de material proteico anormal no espaço extrecelular dos órgäos e tecidos. Os amiloidomas säo incomuns e näo estäo associados à amiloidose sistêmica. Define-se a amiloidose pulmonar localizada como o depósito amilóide restrito ao trato respiratório, sem deposisçäo sistêmica...


Subject(s)
Humans , Male , Aged , Amyloidosis/physiopathology , Amyloidosis/diagnosis , Amyloidosis/therapy , Diagnosis, Differential
17.
Rev. méd. Hosp. Säo Vicente de Paulo ; 10(22): 67-9, jan.-jun. 1998. ilus
Article in Portuguese | LILACS | ID: lil-224992

ABSTRACT

A Criptococose cutânea primária em pacientes sem comprometimento imunológico é uma entidade clínica muito rara e, quando ocorre, sua apresentaçäo é multiforme, dificultando o diagnóstico. Relata-se o caso de um paciente masculino branco, 69 anos que apresentava lesäo plana, ulcerada, pardo-brancacenta em regiäo peri-obicular direita. Com a suspeita de carcinoma basocelular, realizou-se uma biópsia excisional confirmando o diagnóstico de Criptococose cutânea tipo Granulomatosa. Näo haviam evidências de doença sistêmica. A Criptococose é causada pelo Cryptococcus sp. As manifestaçöes cutâneas ocorrem em 10 a 15 por cento dos casos e, na maioria das vezes, precede o surgimento de doenca sistêmica. Os fatores predisponenetes säo doenças sistêmicas crônicas, SIDA, uso de corticóides ou drogas imunossupressoras. Apresenta-se na forma de abscessos ou placas ulceradas com margens elevadas e lisas, semelhantes ao carcinoma basocelular. O diagnóstico é realizado pela combinaçäo de um alto grau de suspeiçäo, da apresentaçäo clínica e do estudo anátomo-patológico


Subject(s)
Male , Aged , Carcinoma, Basal Cell/diagnosis , Cryptococcosis/diagnosis , Cryptococcosis/physiopathology
18.
Rev. méd. Hosp. Säo Vicente de Paulo ; 9(21): 35-7, jul.-dez. 1997. ilus
Article in Portuguese | LILACS | ID: lil-214158

ABSTRACT

A ectopia pancreática em tecido gástrico é a anomalia congênita mais frequente. Foi inicialmente descrita em 1859 por Klob, tendo sido encontrada tanto em órgäos abdominais (estomago, duodeno, divertículo de Meckel) como extra-abdominais (pulmäo). Localiza-se mais frequentemente no antro gástrico. Apresenta-se geralmente como um nódulo séssil de até 2 cm. de diâmetro com o centro umbilicado. Normalmente é de achado ocasional. Os sintomas dependem de sua localizaçäo, sendo na maioria das vezes inespecíficos. Podem simular um quadro de abdomen agudo e causar hemorragia digestiva. O tratamento é usualmente clínico. Indica-se ressecçäo cirúrgica quando a natureza da lesäo näo pode ser bem determinada ou quando há suspeita de malignizaçäo


Subject(s)
Female , Adult , Pancreatic Diseases , Choristoma , Gastroscopy , Hamartoma
19.
Rev. méd. Hosp. Säo Vicente de Paulo ; 9(21): 43-5, jul.-dez. 1997. ilus
Article in Portuguese | LILACS | ID: lil-214160

ABSTRACT

O carcinoma de mama em homens jovens é uma patologia de baixa incidência, correspondendo a apenas 1 por cento de todas as neoplasias de mama diagnosticadas. Seu pico de incidência é 5 a 10 anos mais tardio do que nas mulheres, apresentado-se em torno de 60 anos de idade. Os autores relatam o caso de um paciente com 42 anos com diagnóstico anatomopatológico de Carcinoma Ductal Infiltrante, estadiado em pT2pN1bii pMO. A maioria dos pacientes relatam a presença de nódulo palpável(80 a 90 por cento). Clinicamente, a doença comporta-se como nas mulheres, apresentando prognóstico semelhante quando em estágios iguais


Subject(s)
Humans , Male , Adult , Breast Neoplasms, Male
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