1. Xenotransplantation Research Center; Seoul National University College of Medicine; Seoul Korea
2. Department of Microbiology and Immunology; Seoul National University College of Medicine; Seoul Korea
3. Cancer Research Institute; Seoul National University College of Medicine; Seoul Korea
4. Institute of Endemic Diseases; Seoul National University College of Medicine; Seoul Korea
5. Department of Biomedical Sciences; Seoul National University College of Medicine; Seoul Korea
6. Department of Experimental Animal Research; Biomedical Research Institute; Seoul National University College of Medicine; Seoul Korea