Joanne Guay1, Sandra Kopp2. 1. University of Sherbrooke, Sherbrooke, Quebec, Canada; Teaching and Research Unit, Health Sciences, University of Quebec in Abitibi-Temiscamingue, Quebec, Canada. Electronic address: Joanne.Guay@UQAT.ca. 2. Department of Anesthesiology and Perioperative Medicine, Mayo Clinic College of Medicine, Rochester, MN, USA.