Antibodies to Helicobacter pylori and pepsinogen levels in children from Costa Rica: comparison of two areas with different risks for stomach cáncer

by Sierra Ramos, Rafaela, Muñoz Calero, Nubia, Peña, Salvador, Biemond, I., van Duijn, W., Lamers, C. B. H. W., Teuchmann, Sibylle, Hernández, S., Correa, P.
Published 2015

Exposure to N-nitrosamines and other risk factors for gastric cancer in Costa Rican children

by Sierra Ramos, Rafaela, Ohshima, Hiroshi, Muñoz Calero, Nubia, Teuchmann, Sibylle, Peña, Salvador, Malaveille, Christian, Pignatelli, Brigitte, Chinnock Mc'Neil, Anne Eliza, El Ghissassi, F., Chen, C., Hautefeuille, A., Gamboa Cerda, Cecilia, Bartsch, Helmut
Published 2016

Erradicación de Helicobacter pylori en una población de alto riesgo de cáncer gástrico

by Sierra Ramos, Rafaela, Salas Chaves, Pilar, Mora Zuñiga, Francisco, Sanabria, Marjorie, Chinnock Mc'Neil, Anne Eliza, Peña, Salvador, Quirós, Eber, Mora, Walter, Mena, Fernando, Altman Ortiz, Rodrigo, Muñoz Calero, Nubia
Published 2015