[Stomach function tests and their limitations--clinical aspects].
D002908:Chronic Disease; D005750:Gastric Juice / Q000378:metabolism*; D005756:Gastritis / Q000175:diagnosis; D006801:Humans; D013272:Stomach Diseases / Q000175:diagnosis*; D013274:Stomach Neoplasms / Q000175:diagnosis; D013276:Stomach Ulcer / Q000175:diagnosis