[Helicobacter pylori: some epydemiological questions in Latin America after twenty-five years].
Rodolfo E
RE
Corti
D016481:Helicobacter Infections / Q000453:epidemiology*; D016480:Helicobacter pylori; D006801:Humans; D007843:Latin America / Q000453:epidemiology; D015995:Prevalence; D013272:Stomach Diseases / Q000453:epidemiology* / Q000382:microbiology