1 Division of Renal Transplantation, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510530, China. Electronic address: sunqiquan@hotmail.com.
2 China Organ Donation Administrative Center, Beijing, China.
3 China Organ Transplant Response System Research Center, Shenzhen, China; Department of Surgery, University of Hong Kong, Queen Mary Hospital, Hong Kong, China.
4 Department of Urology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
5 Immunobiology and Transplantation Research, Houston Methodist Hospital, Texas Medical Center, Houston, TX, USA.