1. Department of Medical Imaging and Radiological Sciences, Chung Shan Medical University, Taichung, Taiwan
2. Department of Nuclear Medicine, Chung Shan Medical University Hospital, Chung Shan Medical University, Taichung, Taiwan
3. Graduate Institute of Radiological Science, Central Taiwan University of Science and Technology, Takun, Taichung, Taiwan, Taiwan
4. Department of Radiology, Cardinal Tien Hospital, New Taipei City, Taiwan, Taiwan
5. Department of Radiation Oncology, Chung Shan Medical University Hospital, Chung Shan Medical University, Taichung, Taiwan
6. School of Medicine, Chung Shan Medical University, Taichung, Taiwan