1. Department of Psychology, Dalhousie University, Life Sciences Centre, PO Box 15000, Halifax, Nova Scotia, B3H 4R2, Canada.
2. Department of Psychology, Dalhousie University, Life Sciences Centre, PO Box 15000, Halifax, Nova Scotia, B3H 4R2, Canada
3. Centre for Pediatric Pain Research, IWK Health Centre, 5850/5980, University Avenue, Halifax, Nova Scotia, B3K 6R8, Canada
4. Department of Pediatrics, Dalhousie University and the IWK Health Centre, 5850 University Avenue, PO Box 9700, B3K 6R8, Canada
5. Department of Psychiatry, Dalhousie University, 5909 Veterans’ Memorial Lane, 8th floor, Abbie J Lane Memorial Building QEII Health Sciences Centre, Halifax, Nova Scotia, B3H 2E2, Canada
6. Research, IWK Health Centre, 5850/5980 University Avenue, PO Box 9700, Halifax, NS B3K 6R8, Canada
7. Department of Community Health & Epidemiology, Centre for Clinical Research, 5790 University Avenue, Halifax, NS B3H 1V7, Canada