title: [Primary small intestinal malignancies].
mesh_terms: D000328:Adult; D000368:Aged; D004379:Duodenal Neoplasms / Q000175:diagnosis*; D005260:Female; D006801:Humans; D007078:Ileal Neoplasms / Q000175:diagnosis*; D007414:Intestinal Neoplasms / Q000453:epidemiology / Q000401:mortality; D007580:Jejunal Neoplasms / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D013624:Taiwan