Gastroscopy in the differential diagnosis of gastric ulcer.
GEIER
F A J
FA
D003937:Diagnosis, Differential; D005773:Gastroscopy; D006801:Humans; D010437:Peptic Ulcer / Q000175:diagnosis*; D013270:Stomach / Q000175:diagnosis*; D013276:Stomach Ulcer
PEPTIC ULCER/diagnosis; STOMACH/examination