title: Helicobacter pylori--our knowledge is growing.
mesh_terms: D016480:Helicobacter pylori / Q000302:isolation & purification*; D006801:Humans; D010437:Peptic Ulcer / Q000209:etiology; D013270:Stomach / Q000382:microbiology*; D013272:Stomach Diseases / Q000382:microbiology*