Buscar
Mostrando ítems 1-2 de 2
Antibodies to Helicobacter pylori and pepsinogen levels in children from Costa Rica: comparison of two areas with different risks for stomach cáncer
(1992-09)
In children and adolescents from two areas of Costa Rica with contrasting gastric cancer risks, two factors suspected to be linked to the natural history of the disease were tested: serum antibodies to Helicobacter pylori ...
In vivo Nitrosoproline formation and other risk factors in Costa Rican Children from high-and low-risk areas for gastric cancer
(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- ...