1. From the Division of Plastic and Reconstructive Surgery, Department of Surgery, University of Toronto (T.J.S., K.W), the Department of Critical Care Medicine, Sunnybrook Health Sciences Centre (S.P.D.), and the Division of Plastic and Reconstructive Surgery, Department of Surgery, St. Joseph’s Health Centre (K.W.), Toronto, and the Division of Plastic and Reconstructive Surgery, Department of Surgery, University of Western Ontario Schulich School of Medicine and Dentistry, London (J.T.) — all in Canada.