1 Department of Anesthesiology, University of Minnesota Medical School, Minneapolis, Minnesota, prielipp@umn.edu Department of Anesthesiology, Twin Cities Hospital of Niceville, Niceville, Florida Department of Anesthesiology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin Department of Anesthesiology, Mayo Clinic College of Medicine, Jacksonville, Florida Department of Anesthesiology, University of Arizona, Tucson, Arizona Department of Anesthesiology, Vanderbilt University School of Medicine, Nashville, Tennessee Department of Anesthesia/Critical Care Services, NorthShore HealthSystem, University of Chicago Pritzker School of Medicine, Chicago, Illinois Department of Anesthesia and Perioperative Care and Medicine, UCSF School of Medicine, San Francisco, California.