Måns Rosén1, Olle Lundberg, Gudrun Persson. 1. Centre for Epidemiology, National Board of Health and Welfare, Stockholm, Sweden. mans.rosén@socialstyrelsen.se
Authors: Ron Borland; Lin Li; K Michael Cummings; Richard O'Connor; Kevin Mortimer; Tom Wikmans; Lars Ramstrom; Bill King; Ann McNeill Journal: Harm Reduct J Date: 2012-06-11