[Down's syndrome and serotonin].
D006916:5-Hydroxytryptophan / Q000627:therapeutic use; D004314:Down Syndrome / Q000097:blood* / Q000188:drug therapy; D006801:Humans; D007231:Infant, Newborn; D012701:Serotonin / Q000097:blood*
D012701:Serotonin; D006916:5-Hydroxytryptophan