[Melatonin (author's transl)].
D000818:Animals; D002940:Circadian Rhythm; D006801:Humans; D007737:Kynurenine / Q000378:metabolism; D008550:Melatonin / Q000378:metabolism / Q000502:physiology; D010858:Pigmentation; D010870:Pineal Gland / Q000378:metabolism / Q000502:physiology; D012701:Serotonin / Q000378:metabolism
D012701:Serotonin; D007737:Kynurenine; D008550:Melatonin