1. Division of Nephrology, West China Hospital of Sichuan University, Chengdu, China
2. Division of Nephrology, The First Affiliated Hospital of Chengdu Medical College, Chengdu, China
3. Laboratory of Diabetic Kidney Disease, Centre of Diabetes and Metabolism Research, West China Hospital of Sichuan University, Chengdu, China
4. Division of Project Design and Statistics, West China Hospital of Sichuan University, Chengdu, China