title: [Christmas--a light deficiency disease?].
authors.affiliation: Psychiatrische Universitätsklinik, Philosophische Fakultät der Universität Zürich, Switzerland. haugh@datacomm.ch
authors.forename: H J
authors.initials: HJ
authors.lastname: Haug
mesh_terms: D001921:Brain / Q000503:physiopathology; D002835:Christianity; D006693:Holidays; D006801:Humans; D008959:Models, Neurological; D009424:Nervous System Physiological Phenomena; D010789:Phototherapy; D016574:Seasonal Affective Disorder / Q000503:physiopathology* / Q000628:therapy*