SAHI TIMO 302,356 DEPRESSION Depression : preventive and risk factors : Proceedings of the VIII Medical Symposium of the YrjiS Jahnsson Foundation Sanncis Training Centre, Porvoo, Finland June 15-17, 1992 / eds. Jouko Lonnqvist 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