1. Department of Anesthesiology and Perioperative Medicine, University of Pittsburgh Medical Center , Pittsburgh, Pennsylvania
2. Pain Medicine, University of Pittsburgh Medical Center , Pittsburgh, Pennsylvania
3. Louisiana Pain Institute , Covington, Louisiana
4. Summit Orthopedics , Vadnais Heights, Minnesota
5. Amoskeag Anesthesia , Manchester, New Hampshire
6. Interventional Pain Physician & Consultant, Northwestern Medical Group , Chicago, Illinois
7. Blanchard Valley Health System , Findlay, Ohio, USA