[Evaluation of simple x-ray radiography of the abdominal region as a control study of x-ray diagnosis of acute abdomen].
D000006:Abdomen, Acute / Q000000981:diagnostic imaging*; D000293:Adolescent; D000328:Adult; D002648:Child; D002769:Cholelithiasis / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010437:Peptic Ulcer / Q000000981:diagnostic imaging; D011860:Radiography, Abdominal; D013274:Stomach Neoplasms / Q000000981:diagnostic imaging