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Hiroaki KOKATSU
Department of Periodontics, School of Dentistry, Showa University
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Motoyuki SUZUKI
Department of Periodontics, School of Dentistry, Showa University
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Hajime MIYASHITA
Department of Periodontics, School of Dentistry, Showa University
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Kohji HASEGAWA
Department of Periodontics, School of Dentistry, Showa University
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Kazuyuki SEGAWA
The First Department of Oral Anatomy, School of Dentistry, Showa University
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Reiji TAKIGUCHI
The First Department of Oral Anatomy, School of Dentistry, Showa University