Primary tumours of the small intestine.
D000368:Aged; D005260:Female; D006801:Humans; D007414:Intestinal Neoplasms / Q000175:diagnosis* / Q000453:epidemiology / Q000473:pathology; D007415:Intestinal Obstruction / Q000209:etiology; D007421:Intestine, Small / Q000473:pathology; D008297:Male; D008875:Middle Aged; D011379:Prognosis