1. Department of Orthopaedic Surgery, University of Tennessee College of Medicine in Chattanooga, Chattanooga, TN, USA
2. Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, USA
3. Department of Anesthesiology, Critical Care, and Pain Management; Hospital for Special Surgery, New York, NY, USA
4. Department of Orthopaedic and Spine Surgery, Adventist Health Howard Memorial Hospital, Willits, CA, USA