坂元薫
Sakamoto K et al: A nationwide survey of seasonal affective disorder at 53 outpatient university clinics in Japan.Acta Psychiatrica Scandinavica 87: 258-265,1993
Sakamoto K et al: A longitudinal follow-up study of seasonal affective disorder. American Journal of Psychiatry 152:862-868,1995
Sakamoto K et al: The impact of attempted suicide on the symptoms and course of mood disorders, Journal of Clinical Psychiatry 64:121-1216, 2003