Journal of Consulting and Clinical Psychology (2013) - Comment
pubmed: 23750460  doi: 10.1037/a0033439  issn: 1939-2117  issn: 0022-006x 

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Brjánn Ljótsson, Hugo Hesser, Erik Andersson, Perjohan Lindfors, Timo Hursti, Christian Rück, Nils Lindefors, Gerhard Andersson, Erik Hedman