1. Xenotransplantation Center, Division of Nephrology, Department of Internal Medicine, The Catholic University of Korea, Seoul, Korea.
2. Department of Internal Medicine, The Affiliated Hospital, YanBian University Medical College, YanJi 133000, JiLin, PR China.
3. Department of Laboratory Medicine, Hallym University College of Medicine, Anyang, Korea.
4. Cell Death Research Center, Department of Anatomy, The Catholic University of Korea, Seoul, Korea.