1. University of Western Ontario; Department of Surgery; #303-500 Proudfoot Lane London Canada ON N6H 5G7
2. The University of Western Ontario; Division of Thoracic Surgery; London Health Sciences Centre 800 Commissioners Rd. E., Suite E2-124 London Ontario Canada N6A 5w9
3. University of Toronto; Department of Surgery; St. Joseph's Health Centre 30 The Queensway, Suite 221 Toronto Ontario Canada M6R 1B5