1. Division of Endocrinology and Metabolism, Department of Internal Medicine and Center for Tissue Engineering, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
2. Department of Medicine, College of Medicine, Chang Gung University, Taoyuan 33305, Taiwan
3. Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan 33305, Taiwan
4. Department of Ophthalmology, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
5. Department of Medical Imaging and Radiological Sciences, College of Medicine, Chang Gung University, Taoyuan 33305, Taiwan
6. Department of Diagnostic Radiology, Chang Gung Memorial Hospital, Keelung 20401, Taiwan
7. Molecular Imaging Center, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
8. Department of Chemical Engineering, National Tsing Hua University, Hsinchu 300044, Taiwan