1. Department of Ophthalmology, Emory University, Atlanta, Georgia
2. Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of the National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
3. Departments of Ophthalmology and Visual Sciences and Epidemiology, University of Michigan, Ann Arbor, Michigan
4. Department of Strabismus and Pediatric Ophthalmology, Tianjin Medical University Eye Hospital, Tianjin, China
5. Department of Respiratory and Critical Medicine, Tianjin Medical University General Hospital, Tianjin, China