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Takeyoshi Yoneyama
Department of Dentistry, Oral and Maxillo Facial Surgery, Hamamatsu University, School of Medicine
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Toshifumi Aiba
Department of Periodontics and Restorative Dentistry, Ohu University, School of Dentistry
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Masako Ota
Azarean Sanada Nursing Home for Aged
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Katsuhiko Hirota
The Department of Microbiology, Tokushima University, School of Dentistry
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Yoichiro Miyake
The Department of Microbiology, Tokushima University, School of Dentistry
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Kenji Hashimoto
Department of Dentistry, Oral and Maxillo Facial Surgery, Hamamatsu University, School of Medicine
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Hiroshi Okamoto
Department of Periodontics and Restorative Dentistry, Ohu University, School of Dentistry