title: Cancer of the gastrointestinal tract. E. Small intestine: diagnosis and treatment: introduction.
mesh_terms: D001706:Biopsy; D003937:Diagnosis, Differential; D005770:Gastrointestinal Neoplasms; D006801:Humans; D007414:Intestinal Neoplasms / Q000145:classification / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D007421:Intestine, Small; D009362:Neoplasm Metastasis