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Hitoshi Koyanagi
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Mlitsuhiro Hachida
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Hiroshi Nishida
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Masahiro Endo
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Akimasa Hashimoto
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Author's Organization:Department of Cardiovascular Surgery, The Heart Institute of Japan, Tokyo Women's MedicalCollege Department of Cardiovascular Surgery, The Heart Institute of Japan, Tokyo Women's MedicalCollege Department of Cardiovascular Surgery, The Heart Institute of Japan, Tokyo Women's MedicalCollege Department of Cardiovascular Surgery, The Heart Institute of Japan, Tokyo Women's MedicalCollege Department of Cardiovascular Surgery, The Heart Institute of Japan, Tokyo Women's MedicalCollege