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Rikitake Kogawa
Division of Cardiology, Department of Medicine, Nihon University School of Medicine, Japan
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Masayoshi Kofune
Division of Cardiology, Department of Medicine, Nihon University School of Medicine, Japan
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Yasuo Okumura
Division of Cardiology, Department of Medicine, Nihon University School of Medicine, Japan
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Ichiro Watanabe
Division of Cardiology, Department of Medicine, Nihon University School of Medicine, Japan