1. Division of Nephrology, Nanfang Hospital, Guangzhou, China.
2. Department of Immunology, Southern Medical University, Guangzhou, China.
3. Department of Medical Biochemistry, Graduate School of Medical and Pharmaceutical Sciences, Kumamoto University, Japan.
4. Department of Biological Technique, Southern Medical University, Guangzhou, China.
5. Department of Ophthalmology, Center for Vision Research, Case Western Reserve University and University Hospital of Cleveland, Ohio.