title: Bipolar depression: focus on phenomenology.
authors.forename: Hagop S
authors.initials: HS
authors.lastname: Akiskal
mesh_terms: D000293:Adolescent; D000328:Adult; D001714:Bipolar Disorder / Q000145:classification / Q000175:diagnosis* / Q000523:psychology; D003866:Depressive Disorder / Q000145:classification / Q000175:diagnosis / Q000523:psychology; D039721:Diagnostic and Statistical Manual of Mental Disorders; D006801:Humans; D038801:International Classification of Diseases