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Katsuhiko TAURA
Department of Preventive Dentistry, Tohoku University School of Dentistry
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Okiuji TAKAGI
Department of Preventive Dentistry, Nagasaki University School of Dentistry
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Noriko TAKAHASHI
Department of Preventive Dentistry, Tohoku University School of Dentistry
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Yoshihiro SHIMADA
Department of Preventive Dentistry, Tohoku University School of Dentistry