WITTCHEN HANS-ULRICH 301,305 COMORBIDITY Comorbidity of mood disorders / ed. by Hans-Ulrich Wittchen. - [London : The Royal College of Psychiatry, 1996]. - 134 s. : wykr. ; 24 cm (The British Journal of Psychiatry, ISSN 0007-1250 ; vol. 168, suppl. 30)