title: [Melatonin: a multiple function photoperiodic signal].
authors.forename: X F
authors.initials: XF
authors.lastname: Wang
authors.forename: Z M
authors.initials: ZM
authors.lastname: Liu
authors.forename: S X
authors.initials: SX
authors.lastname: Peng
mesh_terms: D000276:Adjuvants, Immunologic; D000818:Animals; D002940:Circadian Rhythm / Q000502:physiology*; D016166:Free Radical Scavengers; D006801:Humans; D008550:Melatonin / Q000502:physiology*; D017440:Photoperiod
chemical_list: D000276:Adjuvants, Immunologic; D016166:Free Radical Scavengers; D008550:Melatonin