Previous trials have demonstrated the efficacy and durability of computer-based cognitive-behavioral therapy (CBT4CBT) as an add-on to standard outpatient care in a range of treatment-seeking populations. In this study, the authors evaluated the efficacy and safety of CBT4CBT as a virtual stand-alone treatment, delivered with minimal clinical monitoring, and clinician-delivered cognitive-behavioral therapy (CBT) compared with treatment as usual in a heterogeneous sample of treatment-seeking outpatients with substance use disorders.. Login at top right hand side of page using your SSSFT NHS OpenAthens for full text. SSOTP- Please contact the library to receive a copy of this article - http://bit.ly/1Xyazai