1. Department of Orthopedic SurgeryUniversity of Kentucky 740 S Limestone, Suite K401 Lexington Kentucky 40536‐0284
2. Department of StatisticsUniversity of Kentucky Lexington Kentucky
3. College of Health Sciences, Rehabilitation Science PhD ProgramUniversity of Kentucky Lexington Kentucky
4. Department of Orthopaedic SurgeryBrigham and Women's Hospital, Harvard Medical School Boston Massachusetts