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. Dalhousie University; School of Medicine; 107-5620 South Street Halifax NS Canada B3J 0A7
4. Duke University Medical Center; Durham NC USA