1. Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou, Taiwan
2. Chang Gung University, College of Medicine, Taoyuan, Taiwan
3. Division of Neonatology, Department of Pediatrics, Chang Gung Memorial Hospital, Linkou, Taiwan
4. Department of Ophthalmology, Edward S. Harkness Eye Institute, Columbia University, New York, New York, United States
5. Laboratory for Epidemiology, Department of Health Care Management, Chang Gung University, Taoyuan, Taiwan
6. Healthy Aging Research Center, Chang Gung University, Taoyuan, Taiwan
7. Department of Urology, Chang Gung Memorial Hospital, Linkou, Taiwan