Guidelines for clinical trials in Helicobacter pylori infection. Working Party of the European Helicobacter pylori Study Group.
D002986:Clinical Trials as Topic; D005767:Gastrointestinal Diseases / Q000188:drug therapy / Q000382:microbiology*; D016481:Helicobacter Infections / Q000188:drug therapy*; D016480:Helicobacter pylori; D006801:Humans