1. Department of Ophthalmology; Seoul National University College of Medicine; Seoul Korea
2. Laboratory of Ocular Regenerative Medicine and Immunology; Seoul Artificial Eye Center; Seoul National University Hospital Biomedical Research Institute; Seoul Korea
3. Xenotransplantation Research Center and Clinical Research Institute; Seoul National University Hospital; Seoul Korea
4. Department of Ophthalmology; Healthcare System Gangnam Center; Seoul National University Hospital; Seoul Korea