Helicobacter pylori: the size of the problem.
Parsonnet
J
J
Stanford University, CA 94305-5405, USA.
D017677:Age Distribution; D004381:Duodenal Ulcer / Q000382:microbiology; D014943:Global Health; D016481:Helicobacter Infections / Q000453:epidemiology*; D016480:Helicobacter pylori / Q000472:pathogenicity*; D006801:Humans; D015995:Prevalence; D012306:Risk; D013272:Stomach Diseases / Q000382:microbiology