1. Department of Ophthalmology, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
2. ViGenCell Inc., Seoul, Republic of Korea
3. Catholic Hematopoietic Stem Cell Bank, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
4. Department of Molecular Medicine, The Scripps Research Institute, La Jolla, California, United States