[Evaluation of X-ray shadows in cancer of the upper portion of the stomach].
D000368:Aged; D002299:Cardia / Q000000981:diagnostic imaging*; D005260:Female; D005773:Gastroscopy; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D013274:Stomach Neoplasms / Q000000981:diagnostic imaging*