1. Department of Ophthalmology, Cheng Hsin General Hospital, Taipei, Taiwan, Republic of China.
2. Department of Ophthalmology, Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan, Republic of China.
3. Cheng Hsin General Hospital, Taipei, Taiwan, Republic of China.
4. Institute of Pharmacology, School of Medicine, National Yang-Ming University, Taipei, Taiwan, Republic of China.
5. Department of Medical Research and Education, Cheng Hsin General Hospital, Taipei, Taiwan, Republic of China.