1. Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, Missouri, USA; Assistant Professor, Department of Surgery, Washington University School of Medicine, St. Louis, Missouri, USA
2. Department of Surgery, Washington University School of Medicine, St. Louis, Missouri, USA
3. Department of Orthopaedic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA
4. Department of Genetics and Division of Biostatistics, Washington University School of Medicine, St. Louis, Missouri, USA
5. Division of General Medical Sciences, Washington University School of Medicine, St. Louis, Missouri, USA
6. Department of Physical Medicine and Rehabilitation and Department of Orthopedic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA
7. Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, Missouri, USA