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Kazuyuki Sugaya
Depertment of Oral Surgery, Nihon University School of Dentistry
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Takanori Domon
Department of Oral Anatomy II, Hokkaido University School of Dentistry
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Hirotsugu Izumi
Depertment of Oral Surgery, Nihon University School of Dentistry
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Yukishige Kozawa
Department of Oral Anatomy II, Nihon University School of Dentistry at Matsudo