1. Kansai Rosai Hospital, Hyogo, Japan
2. Tokeidai Memorial Hospital, Hokkaido, Japan
3. Miyazaki Medical Association Hospital, Miyazaki, Japan
4. Iwaki City Medical Center, Fukushima, Japan
5. Kasukabe Chuo General Hospital, Saitama, Japan
6. Kishiwada Tokushukai Hospital, Osaka, Japan
7. Tokyo Bay Urayasu Ichikawa Medical Center, Chiba, Japan
8. Nagano Red Cross Hospital, Nagano, Japan
9. Saiseikai Yokohama-City Eastern Hospital, Kanagawa, Japan
10. Boston Scientific Corporation, Marlborough, MA, USA
11. Kokura Memorial Hospital, Fukuoka, Japan