1. Department of Anaesthesia, University of Saskatchewan, University Hospital, Saskatoon and Plains Health Centre, Regina, Saskatchewan, Canada
2. C.D. Hal., M.D., F.R.C.P.(C), F.F.A.R.C.S., Professor of Anaesthesia, Director Pain Management Service.
3. M.D., F.R.C.P.(C), Professor and Head, Department of Anaesthesia.