The moderating effects of group cognitive-behavioral therapy for depression among substance users
Psychology of Addictive Behaviors (2012) - Comment
pubmed: 22564202  doi: 10.1037/a0028158  issn: 1939-1501  issn: 0893-164x 

Sarah B. Hunter, Katie Witkiewitz, Katherine E. Watkins, Susan M. Paddock, Kimberly A. Hepner