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*Yoshihide Shirai
SHIRAI DENTAL CLINIC Division of Periodontology, Niigata University Graduate School of Medical and Dental Sciences
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Kazuhiro Okuda
Division of Periodontology, Niigata University Graduate School of Medical and Dental Sciences
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Takehiko Kubota
Division of Periodontology, Niigata University Graduate School of Medical and Dental Sciences
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Hiromasa Yoshie
Division of Periodontology, Niigata University Graduate School of Medical and Dental Sciences