Filges, Trine and Knudsen, Anne-Sofie Due and Svendsen, Majken Mosegaard and Kowalski, Krystyna and Benjaminsen, Lars and Jørgensen, Anne-Marie Klint (2015) Cognitive-behavioural therapies for young people in outpatient treatment for non-opioid drug use: a systematic review. Campbell Systematic Reviews , 11 , (1) , pp. 1-172.