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Kazuo ITOH
Department of Operative Dentistry, School of Dentistry, Showa University
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Teruo TOKO
Department of Operative Dentistry, School of Dentistry, Showa University
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Mikio CHIBA
Department of Operative Dentistry, School of Dentistry, Showa University
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Sadao WAKUMOTO
Department of Operative Dentistry, School of Dentistry, Showa University