1 Department of Ophthalmology, Tri-Service General Hospital, Taipei, Taiwan.
2 Division of Pharamacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States.
3 Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States.
4 Center for Global Health, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States.
5 Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, United States.