1. University of Kentucky, College of Engineering, Department of Biomedical Engineering, 143 Graham Avenue, Lexington, Kentucky 40506-0108, United States
2. University of Kentucky, College of Health Sciences, Department of Rehabilitation Science, 900 S Limestone Street, Lexington, Kentucky 40536-0200, United States
3. University of Kentucky, College of Health Sciences, Department of Clinical Sciences, 900 S Limestone Street, Lexington, Kentucky 40536-0200, United States
4. University of Kentucky, College of Medicine, Department of Surgery, 900 S Limestone Street, Lexington, Kentucky 40536-0200, United States