Resource-enhancing group intervention against depression at workplace: who benefits? A randomised controlled study with a 7-month follow-up
Kirsi Ahola, Jukka Vuori, Salla Toppinen-Tanner, Pertti Mutanen, Teija Honkonen
Occupational and Environmental Medicine Dec 2012, 69 (12) 870-876; DOI: 10.1136/oemed-2011-100450