title: A peculiar cause of error in gastric endoscopic diagnosis.
mesh_terms: D003937:Diagnosis, Differential; D003951:Diagnostic Errors; D005260:Female; D005773:Gastroscopy; D006801:Humans; D008875:Middle Aged; D010437:Peptic Ulcer / Q000175:diagnosis*; D010439:Peptic Ulcer Perforation / Q000175:diagnosis; D013274:Stomach Neoplasms / Q000175:diagnosis*