BMC Psychology (2013) - Comment
pubmed: 25566359  doi: 10.1186/2050-7283-1-7  issn: 2050-7283 

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Kathy E Watkins, Christine Y Way, Deborah M Gregory, Holly M LeDrew, Valerie C Ludlow, Mary Jane Esplen, Jeffrey J Dowden, Janet E Cox, G William N Fitzgerald, Patrick S Parfrey