title: Dyspepsia and Helicobacter pylori: to endoscope or not to endoscope? The Omega-Study Group.
authors.forename: F
authors.initials: F
authors.lastname: Halter
mesh_terms: D004415:Dyspepsia / Q000175:diagnosis / Q000628:therapy*; D005773:Gastroscopy; D016480:Helicobacter pylori / Q000302:isolation & purification*; D006801:Humans