Show 10 5 10 15 20 50 100 250 Sort by year (new to old) Actions Download search results Subscribe to news feed Your filters: cql: keyword exact "psychotherapy" cql: author exact 001959686047 or (type exact bookEditor and editor exact 001959686047) Add to list Journal Article A1 open access The effect of using assessment instruments on substance-abuse outpatients' adherence to treatment: a multi-centre randomised controlled trial Veerle Raes, Cor AJ De Jong, Dirk De Bacquer (UGent) , Eric Broekaert (UGent) and Jan De Maeseneer (UGent) (2011) BMC HEALTH SERVICES RESEARCH. 11.