1. State Key Laboratory of Organ Failure Research, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, P.R. China.
2. Division of Nephrology, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen, P.R. China.
3. Division of Nephrology, The First People's Hospital of Foshan, Foshan, P.R. China.
4. Division of Nephrology, Guangzhou Development District Hospital, Guangzhou, P.R. China.
5. Division of Nephrology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, P.R. China.
6. Center for Reproductive Medicine, Dongguan Maternal and Child Health Care Hospital, Southern Medical University, Dongguan, P.R. China.