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Y. Shimizu
Division of Aging and Geriatric Dentistry, Department of Oral Function and Morphology Tohoku University Graduate School of Dentistry
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Y. Hattori
Division of Aging and Geriatric Dentistry, Department of Oral Function and Morphology Tohoku University Graduate School of Dentistry
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M. Watanabe
Division of Aging and Geriatric Dentistry, Department of Oral Function and Morphology Tohoku University Graduate School of Dentistry