title: Serum serotonin, free tryptophan and plasma cyclic AMP levels in autistic children -with special reference to their relation to hyperkinesia.
mesh_terms: D000328:Adult; D001321:Autistic Disorder / Q000097:blood* / Q000523:psychology; D002648:Child; D002675:Child, Preschool; D000242:Cyclic AMP / Q000097:blood*; D005260:Female; D006801:Humans; D006948:Hyperkinesis; D008297:Male; D012701:Serotonin / Q000097:blood*; D014364:Tryptophan / Q000097:blood*
chemical_list: D012701:Serotonin; D014364:Tryptophan; D000242:Cyclic AMP