title: [Problems in clinical trial of the eradication of Helicobacter pylori].
authors.forename: B
authors.initials: B
authors.lastname: Jia
mesh_terms: D004381:Duodenal Ulcer / Q000382:microbiology*; D016481:Helicobacter Infections; D016480:Helicobacter pylori; D006801:Humans; D013276:Stomach Ulcer / Q000382:microbiology*