1. Department of Medical Imaging and Radiological Sciences, Central Taiwan University of Science and Technology, Taichung, Taiwan
2. Department of Radiology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
3. Department of Radiology, Taichung Veterans General Hospital, Taichung, Taiwan
4. Department of Radiology, E-DA Cancer Hospital, Kaohsiung, Taiwan
5. Department of Medical Imaging, Cheng Hsin General Hospital, Taipei, Taiwan