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Ken-ichi Fukami
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Katsuhiko Hiramori
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Hiroshi Kishida
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Saichi Hosoda
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Tsuyosi Fujita
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Akira Sakuma
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Author's Organization:2nd department of internal medicine, Iwate Medical Unversity 2nd department of internal medicine, Iwate Medical Unversity 1st department of internal medicine, Nippon Medical School The Heart Institute of Japan, Department of Cardiology, Tokyo Women's Medical College Department of Cardiovascular Surgery, Izumisano Municipal Hospital Medical Reseach Institute, Tokyo Medical and Dental University