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Mitsuru Atsuta
Dept. of Prosthodontics II. School of Dentistry Hokkaido Univ.
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Yumi Miyazawa
Dept. of Prosthodontics II. School of Dentistry Hokkaido Univ.
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Yoichi Uchiyama
Dept. of Prosthodontics II. School of Dentistry Hokkaido Univ.
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Nobuo Nakabayashi
Division of Organic Materials, Institute of Medical and Dental Engineering, Tokyo Medical and Dental Univ.