1. Department of Orthopaedic Surgery
2. Department of Orthopaedic Surgery, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8233, St. Louis, Missouri 63110, USA.
3. Division of Infectious Diseases The Warren Alpert School of Medicine, Brown University, 2 Dudley Street, Suite 200, Providence, Rhode Island 02903, USA.