Serum total tryptophan and free tryptophan concentration in Down's syndrome its relation to serum serotonin concentration.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001921:Brain / Q000378:metabolism; D002648:Child; D002675:Child, Preschool; D004314:Down Syndrome / Q000097:blood* / Q000378:metabolism; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D012701:Serotonin / Q000097:blood* / Q000378:metabolism; D014364:Tryptophan / Q000097:blood*
D012701:Serotonin; D014364:Tryptophan