1. Anesthesiology and Perioperative Care Service, Veterans Affairs Palo Alto Health Care System
2. Department of Anesthesiology, Perioperative, and Pain Medicine, Stanford University School of Medicine
3. Department of Anesthesiology, University of California, San Diego, California
4. Valley Anesthesia Consultants
5. Department of Anesthesiology Critical Care Medicine, Children’s Hospital Los Angeles
6. Department of Anesthesiology, Keck School of Medicine at the University of Southern California
7. Spatial Sciences Institute at the University of Southern California
8. Department of Anesthesiology, Surgery, and Biomedical Informatics, Vanderbilt University Medical Center
9. Department of Anesthesiology & Pain Medicine, University of Washington
10. Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center
11. Department of Anesthesiology and Perioperative Medicine, Mayo Clinic.