1. Department of Mechanical Engineering, University of Minnesota, Minneapolis, Minnesota 55455, United States
2. Department of Mechanical Engineering, University of Texas at Dallas, Richardson, Texas 75080 United States
3. Department of Bioengineering, University of Texas at Dallas, Richardson, Texas 75080, United States
4. Department of Surgery, University of Texas Southwestern Medical Center, Dallas, Texas 75390, United States
5. Center for Advanced Pain Studies, University of Texas at Dallas, Richardson, Texas 75080, United States
6. 3984 Hunters Hill Way, Minnetonka, Minnesota 55345, United States
7. Department of Biomedical Engineering, University of Minnesota, Minneapolis, Minnesota 55455, United States
8. Director, Institute of Engineering in Medicine, University of Minnesota, Minneapolis, Minnesota 55455, United States