1) Department of Cardiovascular Surgery, Osaka Police Hospital, Osaka, Japan
2) Department of Cardiology, Tokai University, Isehara, Japan
3) Department of Cardiology, Keio University, Tokyo, Japan
4) Department of Cardiovascular Surgery, National Cerebral and Cardiovascular Center, Suita, Japan
5) Department of Cardiology, Shonan Kamakura Genaral Hospital, Kamakura, Japan
6) Department of Cardiovascular Surgery, Keio University, Tokyo, Japan
7) Department of Pediatrics, Showa University, Tokyo, Japan
8) Department of Cardiovascular Surgery, Osaka University, Suita, Japan

Koichi Maeda¹⁾, Yuji Ikari²⁾, Kentaro Hayashida³⁾, Junjiro Kobayashi⁴⁾, Shigeru Saito⁵⁾, Hideyuki Shimizu⁶⁾, Hideshi Tomita⁷⁾, Yoshiki Sawa⁸⁾