1 Department of Orthopaedics, King Chulalongkorn Memorial Hospital and Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.
2 Department of Orthopaedic Surgery, Center for Joint Diseases, Kyung Hee University Hospital at Gangdong, 892 Dongnam-ro, Gangdong-gu Seoul, Seoul, 134-727, Korea. drkim@khu.ac.kr.
3 Department of Orthopaedic Surgery, School of Medicine, Kyung Hee University, Seoul, Korea. drkim@khu.ac.kr.
4 Department of Orthopaedics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
5 Department of Orthopaedics, Phramongkutklao Hospital and College of Medicine, Bangkok, Thailand.
6 Department of Orthopaedic Surgery, Yokohama City University Hospital, 3-9 Fukuura, Kanazawa-ku, Yokohama, Japan.
7 Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan.
8 Department of Orthopaedics, School of Medicine, National Yang-Ming University, Taipei, Taiwan.
9 Gold Coast Centre for Bone & Joint Surgery, Gold Coast, Australia.