1. From the Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan;2Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan;
2. Department of Ophthalmology and
3. Cell Culture Laboratory, Department of Medical Research, Show Chwan Memorial Hospital, Changhua, Taiwan; and
4. Cell Culture Laboratory, Department of Medical Research, Show Chwan Memorial Hospital, Changhua, Taiwan; and5Tissue Culture Center, New York Eye and Ear Infirmary, New York, New York.