1. Department of Ophthalmology and Visual Science, Tohoku University Graduate School of Medicine, Sendai, Japan.
2. Division of Biofunctional Science, Tohoku University Biomedical Engineering Research Organization, Sendai, Japan.
3. Division of Clinical Cell Therapy, Tohoku University Graduate School of Medicine, Sendai, Japan.
4. Department of Ophthalmology, Ishinomaki Red Cross Hospital, Ishinomaki City, Miyagi, Japan.