title: [Helicobacter pylori diagnostics--how, when and by whom?].
authors.forename: P
authors.initials: P
authors.lastname: Bytzer
mesh_terms: D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000008:administration & dosage; D004381:Duodenal Ulcer / Q000175:diagnosis / Q000382:microbiology* / Q000517:prevention & control; D016481:Helicobacter Infections / Q000175:diagnosis* / Q000188:drug therapy; D016480:Helicobacter pylori / Q000302:isolation & purification*; D006801:Humans
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal