1. Faculty of Textile Science and Technology, Shinshu University, Nagano, Japan.
2. Division of Acellular Tissue and Regenerative Medical Materials, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan.
3. Department of Material-Based Medical Engineering, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan.