1. Department of Orthopaedics and Rehabilitation, Penn State College of Medicine, Hershey, Pennsylvania
2. Department of Pediatrics, Wright-Patterson Air Force Base, Wright-Patterson AFB, Ohio
3. Department of Orthopaedics and Rehabilitation, Penn State Health Milton S. Hershey Medical Center, Hershey, Pennsylvania
4. Department of Orthopaedics, Penn State Health Milton S. Hershey Medical Center, Hershey, Pennsylvania