1. Haruguchi Vascular Access Clinic Tokyo Japan
2. Kansai Rosai Hospital Amagasaki Japan
3. Shonan Kamakura General Hospital Kamakura Japan
4. Shizuoka General Hospital Shizuoka Japan
5. Kishiwada Tokushukai Hospital Kishiwada City Japan
6. Tokyo Women's Medical University Tokyo Japan
7. Medtronic Minneapolis Minnesota USA
8. Medtronic Tokyo Japan
9. Saitama Medical Center Saitama Medical University Saitama Japan