1. Department of Anatomy and Cell Biology Graduate School of Medicine Kyoto University Kyoto Japan
2. JST, ERATO Kyoto Japan
3. JST, PRESTO Fukuoka Japan
4. Department of Developmental Stem Cell Biology Faculty of Medical Sciences Kyushu University Fukuoka Japan
5. Center for iPS Cell Research and Application Kyoto University Kyoto Japan
6. Institute for Integrated Cell‐Material Sciences Kyoto University Kyoto Japan
7. AMED‐CREST, AMED Tokyo Japan