1. Department of Surgery, National Health Insurance Service Ilsan Hospital, Goyang, Korea.
2. The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea.
3. Department of Genetics and Biotechnology, College of Life Sciences, Kyung Hee University, Yongin, Korea.
4. Department of Surgery, Yonsei University College of Medicine, Seoul, Korea.
5. Department of Pathology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.