1. Beth Israel Deaconess Medical Center, Department of Anesthesiology, Critical Care, and Pain Medicine, Boston, MA
2. Louisiana State University Health Shreveport, Department of Neurology, Shreveport, LA
3. Georgetown University Hospital, Department of General Surgery, Medstar, Washington, DC
4. Southcoast Physician Group, Wareham, MA
5. Louisiana State University Shreveport, Department of Anesthesiology, Shreveport, LA
6. UTHealth McGovern Medical School, Department of Anesthesiology, Critical Care and Pain Medicine, Houston, TX