title: [Primary malignant tumor of the small intestine].
mesh_terms: D000328:Adult; D000368:Aged; D004379:Duodenal Neoplasms / Q000175:diagnosis / Q000601:surgery*; D005260:Female; D006801:Humans; D007078:Ileal Neoplasms / Q000175:diagnosis / Q000601:surgery*; D007580:Jejunal Neoplasms / Q000175:diagnosis / Q000601:surgery*; D008297:Male; D008875:Middle Aged