[Summary of the 4th national symposium on childhood gastrointestinal diseases].
D002648:Child; D002681:China; D020776:Endoscopes, Gastrointestinal; D005767:Gastrointestinal Diseases / Q000175:diagnosis* / Q000628:therapy*; D005769:Gastrointestinal Motility; D016481:Helicobacter Infections / Q000175:diagnosis; D006801:Humans; D010437:Peptic Ulcer / Q000628:therapy