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Masafumi Fujiwara
Division of Cardiology, Sapporo National Hospital present: Division of Cardiology, Hokkaido Circulation Hospital
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Masashi Horimoto
Division of Cardiology, Sapporo National Hospital
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Natsuko Kodama
Division of Cardiology, Sapporo National Hospital
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Takashi Takenaka
Division of Cardiology, Sapporo National Hospital