1. Dalhousie University; Department of Anesthesia, Pain Management and Perioperative Medicine; 10 West Victoria 1276 South Park Street Halifax NS Canada B3H 2Y9
2. IWK Health Centre; Department of Pediatric Anesthesia; 5850/5890 University Avenue Halifax NS Canada B3P 0B7
3. Duke University Medical Center; Durham NC USA
4. Dalhousie University; W.K. Kellogg Health Sciences Library; 5850 College St PO Box 15000 Halifax NS Canada B3H 4R2