1. Global Health Economics Unit of the Vermont Center for Clinical and Translational Science, Burlington, VT (USA); University of Vermont College of Medicine, Burlington, VT (USA)
2. Global Health Economics Unit of the Vermont Center for Clinical and Translational Science, Burlington, VT (USA)
3. University of Vermont College of Medicine, Burlington, VT; University of Vermont Medical Center, Burlington, VT (USA)
4. University of Vermont, Burlington, VT (USA)
5. Therakos, Inc., West Chester, PA (USA)
6. Department of Surgery, Temple University School of Medicine, Philadelphia, PA (USA)
7. University of Vermont College of Medicine, Burlington, VT (USA)