1. Department of Ophthalmology Beijing Friendship Hospital Capital Medical University Beijing China
2. Department of Ophthalmology Beijing Moslem People's Hospital Beijing China
3. Department of Ophthalmology Fuxing Hospital Capital Medical University Beijing China
4. Clinical Epidemiology and EBM Unit Beijing Friendship Hospital Capital Medical University Beijing China
5. Bothwin Clinical Study Consultant Shanghai China
6. Bothwin Clinical Study Consultant Bellevue Washington USA
7. Department of Ophthalmology Peking University Third Hospital Beijing China