Dr. Apley meets Helicobacter pylori.
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D015746:Abdominal Pain / Q000209:etiology*; D000328:Adult; D002648:Child; D002908:Chronic Disease; D005756:Gastritis / Q000382:microbiology; D016481:Helicobacter Infections / Q000150:complications*; D016480:Helicobacter pylori; D006801:Humans; D010437:Peptic Ulcer / Q000382:microbiology