1. From the Department of Anesthesia, University of Toronto, Toronto, Ontario, Canada (B.E.S.); Laboratory of Biomedical Science, The Feinstein Institute for Medical Research, Manhasset, New York (B.E.S., P.S.O.); Section for Anesthesiology and Intensive Care Medicine, Department of Physiology and Pharmacology, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden (E.S., L.I.E.