1. Geriatric Ophthalmology Research Center, Shahid Sadoughi University of Medical Science, Yazd, Iran
2. Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
3. Islamic Azad University, Tehran Medical Branch, Tehran, Iran
4. Isfahan Eye Research Center, Feiz Hospital, Isfahan University of Medical Sciences, Isfahan, Iran
5. Student Research Committee, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
6. Student Research Committee, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
7. Department of Neurosurgery, University of Florida, Gainesville, USA
8. Nikukari Hospital, Tabriz University of Medical Science, Tabriz, Iran
9. Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran