1. Department of Ophthalmology Peking University People's Hospital, Key Laboratory of Vision Loss and Restoration, Ministry of Education; Beijing Key Laboratory of Diagnosis and Therapy of Retinal and Choroid Diseases, Beijing, China
2. Office of Scientific Research, Peking University Health Science Center, Beijing, China
3. Department of Epidemiology & Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China