[Symposium: diagnosis of early gastric cancer].
D000328:Adult; D000368:Aged; D005260:Female; D005773:Gastroscopy; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D013274:Stomach Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D013997:Time Factors