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Yuichi Noguchi
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Takeshi Ogawa
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Hiroshi Maeda
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Mototsugu Kohno
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Noriyoshi Ohashi
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Ikuo Fukuda
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Hiroshi Ohuchi
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Iwao Yamaguchi
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Yasuro Sugishita
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Author's Organization:Department of Internal Medicine, Tsukuba Medical Center Hospital Department of Internal Medicine, Hakujukai Memorial Hospital Department of Internal Medicine, Tsukuba Medical Center Hospital Department of Emergency Medicine, Tsukuba Medical Center Hospital Department of Emergency Medicine, Tsukuba Medical Center Hospital Department of Cardiovascular Surgery, Tsukuba Medical Center Hospital Department of Cardiovascular Surgery, Tsukuba Medical Center Hospital The Cardiovascular Devision, Department of Internal Medicine, Institute of Clinical Medicine, University of Tsukuba The Cardiovascular Devision, Department of Internal Medicine, Institute of Clinical Medicine, University of Tsukuba