1. Department of Surgery, Keck School of Medicine University of Southern California Los Angeles California USA
2. Division of Plastic Surgery, Feinberg School of Medicine Northwestern University Chicago Illinois USA
3. Professional Education and Research Institute Roanoke Virginia USA
4. Department of Surgery Drexel University School of Medicine Philadelphia Pennsylvania USA
5. Strategic Solutions, Inc Bozeman Montana USA
6. Lower Extremity Institute for Research and Therapy Youngstown Ohio USA
7. Center for Clinical Research San Francisco California USA