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Hiroyoshi ONODERA
Department of Internal Medicine, Miyagi Seijinbyo Center, Natori
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Tetustaro TAKEDA
Department of Internal Medicine, Miyagi Seijinbyo Center, Natori
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Nobuyuki SUGAWARA
Cencer Detection Center, of Miyagi Cancer Society
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Akira FUKAO
Department of Public Health, Tohoku University School of Medicin
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Nobuyuki CHIDA
Third Department of Internal Medicine, Tohoku University School of Medicine