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*Minori Hatta
The Nippon Dental Univ., at Tokyo
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Akikazu Shinya
The Nippon Dental Univ., at Tokyo
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Harunori Gomi
The Nippon Dental Univ., at Tokyo
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Shingo Katagiri
The Nippon Dental Univ., at Tokyo
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Yasuo Hatano
The Nippon Dental Univ., at Tokyo
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Akiyoshi Shinya
The Nippon Dental Univ., at Tokyo
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Yuji Nakasone
Tokyo University of Science