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aCentre for Pain Research, University of Bath, Bath, UK
bDepartment of Experimental – Clinical and Health Psychology, Ghent University, Ghent, Belgium
*Corresponding author. Address: Centre for Pain Research, University of Bath, Bath BA2 7AY, UK. Tel.: +44 12253686439; fax: +44 1225386113.
Article history: Received 13 December 2011; Received in revised form 24 February 2012; Accepted 27 February 2012.