1. Department of Psychology and Neuroscience; Dalhousie University; Halifax Nova Scotia Canada
2. Centre for Pediatric Pain Research; IWK Health Centre; Halifax Nova Scotia Canada
3. Department of Pediatrics; Dalhousie University; Halifax Nova Scotia Canada
4. School of Psychology; Centre for Pain Research; National University of Ireland; Galway Ireland
5. Department of Psychology; B.C. Children's Hospital; Vancouver British Columbia Canada