1. Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine
2. Cardiovascular Centre, Kansai Rosai Hospital
3. Department of Cardiovascular Medicine, Iwaki Kyoritsu General Hospital
4. Cardiovascular Division, Morinomiya Hospital
5. Cardiovascular Centre, Takatsu General Hospital
6. Cardiovascular Centre, Ageo Central General Hospital
7. Department of Cardiovascular Medicine, Yokohama City University Hospital
8. Cardiovascular Centre, Fukuoka Sanno Hospital
9. Division of Cardiovascular Medicine, Toho University, Ohashi Medical Centre