Institution: | a Department of Anesthesiology, Virginia Mason Medical Center, Seattle, WA b Department of Anesthesiology, University of Washington, Seattle, WA c Department of Anesthesiology, St. Luke's—Roosevelt Hospital Center, New York, NY d Department of Anesthesiology, Columbia University, New York, NY e Department of Anesthesiology, Children's Memorial Hospital, Chicago, IL f Department of Anesthesiology, Northwestern University, Chicago, IL |