1. Harvard Medical School, Boston, MA
2. Beth Israel Deaconess Medical Center, Department of Anesthesiology, Critical Care, and Pain Medicine, Harvard Medical School, Boston, MA
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