title: Seasonal major affective disorder.
abstract: A seasonal affective disorder characterized by mild affective symptoms has recently been described. The author presents four cases of severe major affective disorder with a seasonal pattern and discusses the clinical relevance of seasonality.
mesh_terms: D000328:Adult; D001683:Biological Clocks; D003866:Depressive Disorder / Q000175:diagnosis* / Q000209:etiology / Q000523:psychology; D005260:Female; D006801:Humans; D008027:Light; D012621:Seasons