1. Department of Radiology, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan
2. Graduate Institute of Biomedical Materials and Tissue Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, Taiwan
3. College of Health Care and Management, Kainan University, Taoyuan, Taiwan
4. Center of Nanotechnology, Chung Yuan Christian University, Taoyuan, Taiwan
5. Department of Bioscience Technology, College of Science, Chung Yuan Christian University, Taoyuan, Taiwan