1. Department of Pathology, IWK Health Centre, Dalhousie University Faculty of Medicine, 5850/5980 University Avenue, P.O. Box 3070, Halifax, Nova Scotia B3J 3G9, Canada
2. Department of Surgery, IWK Health Centre, Dalhousie University Faculty of Medicine, 5850/5980 University Avenue, P.O. Box 3070, Halifax, Nova Scotia B3J 3G9, Canada