[Risk reductions in gastroenterology].
Nogueira de Rojas
José Ramón
JR
Jefatura de Enseñanza, Hospital General, S.S. Irapuato, Gto., México.
D005762:Gastroenterology / Q000941:ethics* / Q000331:legislation & jurisprudence; D006801:Humans; D040242:Risk Reduction Behavior