title: Endoscopic differentiation of early gastric cancer from benign peptic ulcer.
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D005773:Gastroscopy; D006801:Humans; D008297:Male; D008875:Middle Aged; D013274:Stomach Neoplasms / Q000175:diagnosis*; D013276:Stomach Ulcer / Q000175:diagnosis*