1. Department of Cardiology, Japanese Red Cross Kyoto Daini Hospital, Kyoto, Japan
2. Department of Cardiology, Tokyo Bay Urayasu Ichikawa Medical Center, Chiba, Japan
3. Nagoya EVT Clinic, Nagoya, Japan
4. Department of Cardiology, Kasukabe Chuo General Hospital, Saitama, Japan
5. Cardiovascular Center, Tokeidai Memorial Hospital, Sapporo, Japan