Helicobacter pylori and gastric cancer.
Walker
A R
AR
D000349:Africa / Q000453:epidemiology; D016481:Helicobacter Infections / Q000150:complications* / Q000453:epidemiology*; D016480:Helicobacter pylori; D006801:Humans; D015995:Prevalence; D013274:Stomach Neoplasms / Q000453:epidemiology* / Q000382:microbiology* / Q000401:mortality