From the Departments of Anesthesia and Critical Care (R.F., L.W., J.P.Z., S.K., J.L.A., Z.X.)Neurobiology (A.P.F.), University of Chicago, Chicago, Illinoisthe Department of Anesthesia, Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China (L.W.)the Cancer Center (J.P.Z.)the College of Medicine (S.K.), University of Illinois at Chicago, College of Medicine, Chicago, Illinois.