title: Circadian rhythm in serum 5-hydroxytryptamine of healthy men and male patients with mental retardation.
mesh_terms: D000293:Adolescent; D000328:Adult; D002940:Circadian Rhythm; D004314:Down Syndrome / Q000097:blood*; D006801:Humans; D008607:Intellectual Disability / Q000097:blood*; D008297:Male; D011437:Propylamines / Q000008:administration & dosage*; D012701:Serotonin / Q000097:blood*
chemical_list: D011437:Propylamines; D012701:Serotonin