1. Department of Plastic and Reconstructive Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
2. Department of Plastic and Reconstructive Surgery, Kansai Medical University, Hirakata, Japan.
3. Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute, Suita, Japan.
4. Japan Tissue Engineering Co., Ltd., Gamagori, Japan.
5. Department of Biomedical Engineering, Osaka Institute of Technology, Osaka, Japan.