Somatic health among heroin addicts before and during opioid maintenance treatment: a retrospective cohort study

by Brekke Mette, Skeie Ivar, Lindbæk Morten, Waal Helge
Published 2008-01-01

A cross-sectional study of patients with and without substance use disorders in Community Mental Health Centres

by Ruud Torleif, Waal Helge, Wüsthoff Linda E, Gråwe Rolf W
Published 2011-05-01

Staff attitudes and the associations with treatment organisation, clinical practices and outcomes in opioid maintenance treatment

by Gossop Michael, Caplehorn John RM, Waal Helge, Gjersing Linn, Clausen Thomas
Published 2010-07-01