title: What is the optimal implementation of bright light therapy for seasonal affective disorder (SAD)?
authors.affiliation: Centre for Addiction and Mental Health, University of Toronto, Toronto, Ont.
authors.forename: Robert D
authors.initials: RD
authors.lastname: Levitan
mesh_terms: D006801:Humans; D010789:Phototherapy; D016574:Seasonal Affective Disorder / Q000628:therapy*