1. Department of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai 980-8574, Japan
2. Department of Retinal Disease Control, Tohoku University Graduate School of Medicine, Sendai 980-8574, Japan
3. Division of Clinical Cell Therapy, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
4. Department of Advanced Ophthalmic Medicine, Tohoku University Graduate School of Medicine, Sendai 980-8574, Japan