1. Department of Endocrinology and Metabolism; Shanghai Jiaotong University Affiliated Sixth People's Hospital; Shanghai Clinical Center for Diabetes; Shanghai Key Laboratory of Diabetes Mellitus; Shanghai Diabetes Institute; Shanghai; China
2. Department of Ophthalmology; Shanghai Jiaotong University Affiliated Sixth People's Hospital; Shanghai; China
3. Department of Endocrinology and Metabolism; Shanghai Fudan University Affiliated Zhongshan Hospital; Shanghai; China
4. Department of Endocrinology and Metabolism; Shanghai Jiaotong University Affiliated Renji Hospital; Shanghai; China
5. Caoyang Health Center; Shanghai; China
6. Huayang Health Center; Shanghai; China