1. Department of Plastic and Reconstructive Surgery, Yokohama City University Medical Center, Yokohama, Japan
2. Hand Surgery Center, National Hospital Organization Murayama Medical Center, Musashimurayama, Japan
3. Orthopaedic Surgery, Konan Hospital, Shimotsuma, Japan
4. Department of Plastic and Reconstructive Surgery, Yokohama City University Hospital, Yokohama, Japan