1 Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada.
2 Department of Anesthesia, McGill University, Montreal, Quebec, Canada; Department of Anesthesia, Jewish General Hospital, Montreal, Quebec, Canada; Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Quebec, Canada.
3 Department of Anesthesia, McGill University, Montreal, Quebec, Canada; Department of Anesthesia, Jewish General Hospital, Montreal, Quebec, Canada; Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Quebec, Canada. Electronic address: matthew.cameron@mcgill.ca.