Now showing items 1-2 of 2

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

      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 (1991-04-01)
      The hypothesis that endogenous chemical nitrosation in the normal stomach in early life could play a crucial role in inducing chronic atrophic gastritis/intestinal metaplasia in later life was tested by applying the ...
    • In vivo Nitrosoproline formation and other risk factors in Costa Rican Children from high-and low-risk areas for gastric cancer 

      Sierra Ramos, Rafaela; Chinnock Mc'Neil, Anne Eliza; Ohshima, Hiroshi; Pignatelli, Brigitte; Malaveille, Christian; Gamboa, C.; Teuchmann, Sibylle; Muñoz Calero, Nubia; Bartsch, Helmut (1993)
      The hypothesis that intragastric synthesis of N-nitroso compounds (NOC) in early life could play a role in gastric carcinogenesis was tested by applying the N-nitrosoproline (NPRO) test to about 50 children living in high- ...