1. Department of Joint Preservation and Replacement, Rubin Institute for Advanced Orthopaedics, Sinai Hospital of Baltimore, Baltimore, Maryland
2. Department of Orthopaedic Surgery, Seton Hall University of Health and Medical Sciences, Paterson, New Jersey
3. Department of Orthopaedic Surgery, DownState Medical Institute, Brooklyn, New York
4. Department of Orthopaedic Surgery, Beth Israel Medical Center, New York, New York