1. Department of Orthopaedic Surgery, Armed Forces Yangju Hospital, Yangju, Korea.
2. Department of Orthopaedic Surgery, Sree Narayana Institute of Medical Sciences, Ernakulam, India.
3. Department of Orthopaedic Surgery, Ernakulam Medical Centre, Kochi, India.
4. Department of Orthopaedic Surgery, Hallym University Chuncheon Sacred Heart Hospital, Chuncheon, Korea.