1. The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea.
2. Department of Surgery, Yonsei University College of Medicine, Seoul, Korea.
3. Department of Internal Medicine (Nephrology), Yonsei University College of Medicine, Seoul, Korea.
4. Department of Laboratory Medicine, Yonsei University College of Medicine, Seoul, Korea.
5. Department of Pathology, Yonsei University College of Medicine, Seoul, Korea.