Published on in Vol 19 , No 12 (2017) :December

1 Department of Ophthalmology, Faculty of Medicine, Khon Kaen University, Khon Kaen, TH
2 Department of Dermatology, Harvard Medical School, Boston, MA, US
3 Department of Medicine, Massachusetts General Hospital, Boston, MA, US
4 Ophthalmic Consultants of Boston, Department of Ophthalmology, Harvard Medical School, Boston, MA, US
5 Data Management and Statistical Analysis Center, Faculty of Public Health, Khon Kaen University, Khon Kaen, TH
6 Harvard School of Public Health, Boston, MA, US