1. Department of Anesthesiology, School of Medicine, University of Utah Hospital, Salt Lake City, Utah
2. Department of Anesthesiology, Baylor College of Medicine, Texas Children's Hospital, Houston, Texas
3. Department of Anesthesiology, Perioperative, and Pain Medicine, Harvard Medical School, Brigham and Women's Hospital, Boston, Massachusetts
4. Department of Anesthesia, Critical Care and Pain Medicine, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, Massachusetts
5. Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford University Medical Center, Palo Alto, California
6. Department of Anesthesia and Perioperative Care, University of California San Francisco, Zuckerberg San Francisco General Hospital and Trauma Center, San Francisco, California