1. Department of Surgery, Graduate School of Medicine Kyoto University, Kyoto, Japan.
2. Laboratory of Embryonic Stem Cell Research, Stem Cell Research Center, Institute for Frontier Medical Sciences, Kyoto University, Kyoto, Japan.
3. Stem Cell and Drug Discovery Institute, Kyoto, Japan.
4. Department of Development and Differentiation, Institute for Frontier Medical Sciences, Kyoto University, Kyoto, Japan.
5. Institute for Integrated Cell-Material Science, Kyoto University, Kyoto, Japan.