1Division of Stem Cell Therapy, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, University of Tokyo, Tokyo, Japan
2Division of Stem Cell Processing / Stem Cell Bank, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, University of Tokyo, Tokyo, Japan
3Life Science Division, Bio-Rad Laboratories, Tokyo, Japan.
4Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California