Olga Andrade | Researchain

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Featured researches published by Olga Andrade.

Journal of the National Cancer Institute | 2007

Chemoprevention of Precancerous Gastric Lesions With Antioxidant Vitamin Supplementation: A Randomized Trial in a High-Risk Population

Martyn Plummer; Jorge Vivas; Gladys Lopez; Juan Carlos Bravo; Simón Peraza; Elsa Carillo; Elsa Cano; Denis Castro; Olga Andrade; Víctor Sánchez; Rita García; Eva Buiatti; Claude Aebischer; Silvia Franceschi; Walter Oliver; Nubia Muñoz

Cancer Epidemiology, Biomarkers & Prevention | 2004

Environmental Factors in Helicobacter pylori-Related Gastric Precancerous Lesions in Venezuela

Ikuko Kato; Jorge Vivas; Martyn Plummer; Gladys Lopez; Simón Peraza; Dennis Castro; Víctor Sánchez; Elsa Cano; Olga Andrade; Rita García; Silvia Franceschi; Walter Oliver; Nubia Muñoz

Cancer Causes & Control | 1994

Difficulty in eradicatingHelicobacter pylori in a population at high risk for stomach cancer in Venezuela

Eva Buiatti; Nubia Muñoz; Jorge Vivas; Elsa Cano; Simón Peraza; Elsa Carillo; Denis Castro; Víctor Sánchez; Olga Andrade; Maja Benz; Silvia de Sanjosé; Walter Oliver

International Journal of Cancer | 1995

Determinants of plasma pepsinogen levels in a population at high risk for stomach cancer in venezuela

Ikuko Kato; Kazumasa Miki; Nubia Muñoz; Jorge Vivas; Gladys Lopez; Simón Peraza; Elsa Carillo; Denis Castro; Olga Andrade; Víctor Sánchez; Elsa Cano; Hernan Ramirez; Reto Muggli; Maja Benz; Walter Oliver

European Journal of Cancer Prevention | 1993

Chemoprevention trial of precancerous lesions of the stomach in Venezuela

Nubia Muñoz; Jorge Vivas; Eva Buiatti; Simón Peraza; S de Sanjosé; Elsa Cano; Denis Castro; Víctor Sánchez; Olga Andrade; Maja Benz; Walter Oliver

GEN | 1995

Respuesta inflamatoria asociada con infección por helicobacter pylori en mucosa gástrica con metaplasia intestinal en una población de alto riesgo para cáncer gástrico

Simón Peraza; Jorge Vivas; Gladys Lopez; Elsa Carrillo; Walter Oliver; Olga Andrade; Dennys Castro; Elsa Cano; Víctor Sánchez

GEN | 1993

Aspecto macroscópico y microscópico en cáncer gástrico precoz

Denny Castro; Simón Peraza; Elsa Caro; Víctor Sánchez; Olga Andrade; Walter Oliver; Jorge Vivas; Gladis López

GEN | 1996

Tratamiento endoscópico del cáncer precoz del tracto digestivo superior

Dennis Castro; Rita García; Simón Peraza; Olga Andrade; Gladis López; Elsa Cano; Olga Silva; Walter Oliver

GEN | 1996

Criptosporidiosis gastrointestinal: presentación de tres casos

Gladys Lopez; Simón Peraza; Carlos Fernández; Denny Castro; Olga Andrade; Jorge Vivas

GEN | 1994

Leiomioblastoma gástrico: análisis histomorfológico e inmunológico de tres casos

Simón Peraza; Elsa Carrillo; Gladys Lopez; Denny Castro; Olga Andrade; Elsa Cano; Walter Oliver; José Ramón Castillo; Antonio Petrilli; Francisco Romero Ferrero

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