LONNOVIST JOUKO 302,356 DEPRESSION Depression s preventive and risk factors : Proceedings of the VIII Medical Symposium of the Yrj6 Jahnsson Foundation Sannas Training Centre, Porvoo, Finland June 15-17, 1992 / eds. Jouko Ltmnqvist and Timo Sahi. - Copenhagen s Munksgaard, 1994. - 86 s. ; 28 cm (Acta Psychiatrica Scandinavica, ISSN 0065-1591 ; vol. 89, suppl. nr 377) ISBN 87-16-15077-5