Carcinoid tumours of the gastrointestinal tract.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002276:Carcinoid Tumor / Q000145:classification / Q000175:diagnosis / Q000188:drug therapy / Q000453:epidemiology / Q000473:pathology*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007414:Intestinal Neoplasms / Q000145:classification / Q000175:diagnosis / Q000188:drug therapy / Q000453:epidemiology / Q000473:pathology*; D008113:Liver Neoplasms / Q000556:secondary; D008297:Male; D008303:Malignant Carcinoid Syndrome / Q000473:pathology; D008875:Middle Aged; D009362:Neoplasm Metastasis; D011379:Prognosis; D012701:Serotonin / Q000378:metabolism; D012737:Sex Factors; D013274:Stomach Neoplasms / Q000145:classification / Q000175:diagnosis / Q000188:drug therapy / Q000453:epidemiology / Q000473:pathology*
D012701:Serotonin