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*Yuko Nakatsuka
Department of Oral Rehabilitation, Division of Periodontology and Endodontology, School of Dentistry, Health Sciences University of Hokkaido
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Toshiyuki Nagasawa
Department of Oral Rehabilitation, Division of Periodontology and Endodontology, School of Dentistry, Health Sciences University of Hokkaido
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Yasuhiro Yumoto
Department of Oral Rehabilitation, Division of Periodontology and Endodontology, School of Dentistry, Health Sciences University of Hokkaido
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Futoshi Nakazawa
Department of Oral Biology, Division of Microbiology, School of Dentistry, Health Sciences University of Hokkaido
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Yasushi Furuichi
Department of Oral Rehabilitation, Division of Periodontology and Endodontology, School of Dentistry, Health Sciences University of Hokkaido