title: Primary malignant small intestinal tumors in Nigeria.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002276:Carcinoid Tumor / Q000453:epidemiology; D002277:Carcinoma / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007411:Intestinal Diseases, Parasitic / Q000150:complications; D007414:Intestinal Neoplasms / Q000150:complications / Q000453:epidemiology*; D007421:Intestine, Small; D008228:Lymphoma, Non-Hodgkin / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D009549:Nigeria; D012189:Retrospective Studies; D012509:Sarcoma / Q000453:epidemiology; D012737:Sex Factors