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Tooru Nagasawa
Dept. of Prosthodontics, School of Dentistry, Hiroshima Univ.
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Akira Takamori
Dept. of Prosthodontics, School of Dentistry, Hiroshima Univ.
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Masaaki Tsuda
Dept. of Prosthodontics, School of Dentistry, Hiroshima Univ.
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Hiromichi Tsuru
Dept. of Prosthodontics, School of Dentistry, Hiroshima Univ.