1. Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center (BIDMC), Boston, MA, USA
2. Harvard Medical School, Boston, MA, USA
3. Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center (BIDMC), Boston, MA, USA
4. Department of Orthopaedic Surgery, Yerevan State Medical University, Yerevan, Armenia