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. Institute of Pharmacology, School of Medicine, National Yang-Ming University, Taipei, Taiwan, Republic of China.
4. Department of Pharmacology, School of Medicine, Shandong University, Jinan, Shandong, People's Republic of China.
5. Department of Medical Research and Education, Cheng Hsin General Hospital, Taipei, Taiwan, Republic of China.
6. Institute of Public Health, School of Medicine, National Yang-Ming University, Taipei, Taiwan, Republic of China.