1. Department of Cardiovascular Physiology and Medicine, Graduate School of Biomedical Sciences, Hiroshima University
2. Human Health Sciences, Kyoto University Graduate School of Medicine
3. Division of Biostatistics and Clinical Epidemiology, University of Toyama School of Medicine
4. Division of Vascular Surgery, Department of Surgery, Graduate School of Medicine, The University of Tokyo
5. Matsuo Vascular Ultrasound Laboratory, Matsuo Clinic
6. Senrichuo Hospital
7. Division of Vascular Surgery, Department of Surgery II, Tokyo Medical University