1. Department of Orthopedic Surgery, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei, Taiwan
2. Department of Orthopedic, School of Medicine, Tzu Chi University, Hualien, Taiwan
3. Department of Orthopedic Surgery, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei, Taiwan
4. School of Dental Technology, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
5. Department of Orthopedic Surgery, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan