1) American Psychiatric Association:Diagnostic and Statistical Manual of Mental Disorders. Fourth Edition, Text Revision ed., 2000
2) Barion A, Zee PC:A clinical approach to circadian rhythm sleep disorders. Sleep Med 8:566-577, 2007
3) Desan PH, Weinstein AJ, Michalak EE, et al:A controlled trial of the Litebook light-emitting diode (LED) light therapy device for treatment of Seasonal Affective Disorder (SAD). BMC Psychiatry 7:38, 2007
4) Phipps-Nelson J, Redman JR, Dijk DJ, et al:Daytime exposure to bright light, as compared to dim light, decreases sleepiness and improves psychomotor vigilance performance. Sleep 26:695-700, 2003
5) Rao ML, Muller-Oerlinghausen B, Mackert A, et al:Blood serotonin, serum melatonin and light therapy in healthy subjects and in patients with nonseasonal depression. Acta Psychiatr Scand 86:127-132, 1992
6) Terman M, Terman JS:Light therapy for seasonal and nonseasonal depression:Efficacy, protocol, safety, and side effects. CNS Spectr 10:647-663, 2005