1. Xenotransplantation Research Center College of Medicine Seoul National University Seoul Korea
2. Department of Microbiology and Immunology College of Medicine Seoul National University Seoul Korea
3. Institute of Endemic Diseases College of Medicine Seoul National University Seoul Korea
4. Cancer Research Institute College of Medicine Seoul National University Seoul Korea
5. Department of Biomedical Sciences College of Medicine Seoul National University Seoul Korea
6. Department of Dermatology Samsung Medical Center Seoul Korea
7. Department of Laboratory Medicine Hallym University College of Medicine Anyang Korea
8. Department of Surgery Seoul National University College of Medicine Seoul Korea