[X-ray diagnosis of type IIb early gastric cancer].
D000328:Adult; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D013270:Stomach / Q000473:pathology*; D013274:Stomach Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D013997:Time Factors