title: Physiology. Setting the human clock: technique challenged.
authors.forename: Marcia
authors.initials: M
authors.lastname: Barinaga
mesh_terms: D001683:Biological Clocks; D001831:Body Temperature; D021081:Chronobiology Disorders / Q000628:therapy*; D002940:Circadian Rhythm; D018849:Controlled Clinical Trials as Topic; D003624:Darkness; D006801:Humans; D007717:Knee; D008027:Light; D055537:Light Signal Transduction; D008550:Melatonin / Q000378:metabolism; D010330:Patents as Topic; D016683:Supine Position
chemical_list: D008550:Melatonin