1. University of Pittsburgh,School of Computing and Information,Pittsburgh,PA,USA
2. University of Mississippi Medical Center,School of Population Health,Jackson,MS,USA
3. University of Georgia,School of Computing,Athens,GA,USA
4. Mayo Clinic,Division of Epidemiology,Rochester,MN,USA
5. University of Pittsburgh,Department of Orthopaedic Surgery,Pittsburgh,PA,USA
6. University of Pittsburgh,School of Health and Rehabilitation Sciences,Pittsburgh,PA,USA