From the Department of Anesthesia, McGill University Health Centre, Montreal, Quebec, Canada (C.G., R.A., B.A.); and Department of Surgery (C.L., L.L., A.S.L., B.S., P.C., L.S.F.) and Department of Anesthesia (A.G., F.C.), McGill University, Montreal, Quebec, Canada. (2014-11-01時点)