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Kaoru Inamoto
Gerodontology, Department of Oral Health Science, Faculty of Dental Medicine, Hokkaido University
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Takuma Okumura
Gerodontology, Department of Oral Health Science, Faculty of Dental Medicine, Hokkaido University
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Yutaka Yamazaki
Gerodontology, Department of Oral Health Science, Faculty of Dental Medicine, Hokkaido University