1. Department of Radiology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.
2. National Yang-Ming University, Taipei, Taiwan.
3. Department of Internal Medicine, Kaohsiung Veterans General Hospital, Kaohsiung.
4. Department of Vascular Surgery, Kaohsiung Veterans General Hospital, Kaohsiung.
5. Fooyin University, Kaohsiung Hsien, Taiwan.