Psychology of Addictive Behaviors (2014) - Comment
pubmed: 25134031  doi: 10.1037/a0035668  issn: 1939-1501  issn: 0893-164x 

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Joseph Studer, Stéphanie Baggio, Meichun Mohler-Kuo, Petra Dermota, Jean-Bernard Daeppen, Gerhard Gmel