Carcinoid and serotonin.
D001669:Biochemical Phenomena; D002276:Carcinoid Tumor / Q000652:urine*; D018278:Carcinoma, Neuroendocrine; D006801:Humans; D012701:Serotonin / Q000378:metabolism*
D012701:Serotonin
ARGENTAFFINOMA/urine in; SEROTONIN/metabolism