title: Ewald Hecker's description of cyclothymia as a cyclical mood disorder: its relevance to the modern concept of bipolar II.
authors.affiliation: Lucio Bini Center, Via Crescenzioa 42, 00193 Rome, Italy. a.koukopoulos@flashnet.it
authors.forename: Athanasios
authors.initials: A
authors.lastname: Koukopoulos
mesh_terms: D001714:Bipolar Disorder; D003527:Cyclothymic Disorder / Q000175:diagnosis / Q000266:history* / Q000523:psychology / Q000628:therapy; D003937:Diagnosis, Differential; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D011570:Psychiatry / Q000266:history; D014177:Translations