Yuki Matsumoto, MD1; Keiko Tsuji, MD2; Takuya Osaki, MD1; Shigeto Tsuji, MD3; Junichi Tsuboi, MD3; Hajime Kin, MD3; Yoshihiro Morino, MD2
1Division of Cardiology, Iwate Prefectural Kuji Hospital, Kuji, Iwate, Japan; 2Division of Cardiology, Department of Internal Medicine, Iwate Medical University, Morioka, Iwate, Japan; 3Division of Cardiovascular Surgery, Iwate Medical University, Morioka, Iwate, Japan