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 Seoul National University College of Medicine Seoul Korea
4. Department of Laboratory Medicine Hallym University College of Medicine Seoul Korea
5. Department of Microbiology and Immunology Seoul National University College of Medicine Seoul Korea
6. Optipharm, Inc. Cheongju‐si Korea
7. Department of Internal medicine Seoul National University College of Medicine Seoul Korea