1. From the Institute of Clinical Medicine and the Departments of 3Ophthalmology and 2Department of Ophthalmology, Taipei Veterans General Hospital, Taipei, Taiwan; and
2. the Departments of Ophthalmology and 2Department of Ophthalmology, Taipei Veterans General Hospital, Taipei, Taiwan; and
3. From the Institute of Clinical Medicine and 4Biochemistry and Molecular Biology, School of Medicine, National Yang-Ming University, Taipei, Taiwan; 5Department of Medicine, Mackay Medical College, Taipei, Taiwan.