1. Department of Reconstructive Surgery, Keio University Hospital, Tokyo, Japan
2. Department of Thoracic and Cardiovascular Surgery, Tokai University Hospital, Isehara, Japan
3. Department of Mechanical Engineering, Keio University, Tokyo, Japan
4. Department of Plastic Surgery, The Japanese National Center for Child Growth and Development, Tokyo, Japan
5. Department of Plastic and Reconstructive Surgery, Keio University Hospital, Tokyo, Japan