*Department of Anesthesiology & Perioperative Medicine, School of Nursing, Queens University, Kingston
†LW Stitt Statistical Services
¶Department of Anesthesia & Perioperative Medicine
‡‡Department of Clinical Neurological Sciences, Western University, London
§Wasser Pain Management Centre, Mount Sinai Hospital, University of Toronto, Toronto
#Department of Anesthesiology, University of Ottawa, Ottawa, ON
‡Department of Anesthesia, Pain Management and Perioperative Medicine, Dalhousie University, Halifax
∥Anesthesiology, Pain Medicine and Perioperative Care, Psychiatry Pharmacology, Dalhousie University, Halifax, NS
**Burnaby Hospital, Burnaby, BC
††Department of Family Medicine, McGill University, Montreal, QC, Canada
Supported by the Canadian Foundation for Innovation (grant number 7878) and by Pfizer, Canada.
The authors declare no conflict of interest.
Reprints: Elizabeth G. VanDenKerkhof, RN, DrPH, School of Nursing, Queen’s University, 92 Barrie Street, Kingston, ON, Canada K7L 3N6 (e-mail: [email protected]).