title: Actinic effects of light and biological implications.
mesh_terms: D000818:Animals; D002762:Cholecalciferol / Q000096:biosynthesis; D004777:Environment; D004890:Erythema / Q000209:etiology; D006561:Herpes Simplex / Q000628:therapy; D006801:Humans; D008029:Lighting; D008550:Melatonin / Q000097:blood / Q000652:urine; D008954:Models, Biological; D011565:Psoriasis / Q000628:therapy; D012621:Seasons; D013057:Spectrum Analysis; D013472:Sunlight
chemical_list: D002762:Cholecalciferol; D008550:Melatonin