title: A multicenter study on sleep-wake rhythm disorders in Japan: a preliminary results.
authors.affiliation: Division of Mental Disorder Research, National Institute of Neuroscience, NCNP, Kodaira.
authors.forename: K
authors.initials: K
authors.lastname: Takahashi
mesh_terms: D000328:Adult; D002940:Circadian Rhythm / Q000187:drug effects*; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D010789:Phototherapy; D012894:Sleep Stages / Q000187:drug effects; D012893:Sleep Wake Disorders / Q000188:drug therapy*; D014805:Vitamin B 12 / Q000031:analogs & derivatives* / Q000627:therapeutic use
chemical_list: C019476:mecobalamin; D014805:Vitamin B 12