title: Late nocturnal sleep onset impairs a melatonin shower in young children.
authors.forename: Jun
authors.initials: J
authors.lastname: Kohyama
mesh_terms: D002675:Child, Preschool; D002940:Circadian Rhythm / Q000502:physiology*; D006801:Humans; D007564:Japan; D008550:Melatonin / Q000031:analogs & derivatives* / Q000032:analysis* / Q000378:metabolism* / Q000652:urine; D010775:Photic Stimulation; D017440:Photoperiod; D012463:Saliva / Q000737:chemistry; D012890:Sleep / Q000502:physiology*; D013997:Time Factors; D014556:Urine / Q000737:chemistry
chemical_list: C054513:6-sulfatoxymelatonin; D008550:Melatonin