1. Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University
2. Department of Oral and Maxillofacial Surgery, Faculty of Dental Medicine and Graduate School of Dental Medicine, Hokkaido University
3. Department of Plastic and Reconstructive Surgery, Sapporo City General Hospital
4. Center of Limb Salvage and Wound Care, Souen Central Hospital