title: Helicobacter pylori gastritis: non-invasive diagnosis.
authors.forename: N
authors.initials: N
authors.lastname: Stirling
authors.forename: W
authors.initials: W
authors.lastname: McCallion
mesh_terms: D001944:Breath Tests; D002648:Child; D005756:Gastritis / Q000175:diagnosis* / Q000382:microbiology; D005773:Gastroscopy; D016481:Helicobacter Infections / Q000175:diagnosis*; D016480:Helicobacter pylori; D006801:Humans