Melatonin--the hormone of darkness.
Utiger
R D
RD
D000293:Adolescent; D000328:Adult; D000368:Aged; D000818:Animals; D002114:Calcinosis / Q000473:pathology*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007006:Hypogonadism / Q000209:etiology; D007223:Infant; D008297:Male; D008550:Melatonin / Q000378:metabolism*; D008875:Middle Aged; D010870:Pineal Gland / Q000473:pathology*
D008550:Melatonin