title: Primary tumours of the small intestine.
mesh_terms: D000236:Adenoma / Q000601:surgery; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D004724:Endoscopy; D005260:Female; D006801:Humans; D007414:Intestinal Neoplasms / Q000601:surgery*; D007421:Intestine, Small / Q000601:surgery; D008722:Methods; D008875:Middle Aged