International Journal of Behavioral Medicine (2013) - Comment
pubmed: 22102140  doi: 10.1007/s12529-011-9203-4  issn: 1532-7558  issn: 1070-5503 

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Ian M. Handley, Stephanie L. Fowler, Heather M. Rasinski, Suzanne G. Helfer, Andrew L. Geers