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Yukio SUMITANI
Department of Dental and Oral Surgery, Medical. School, Kobe University
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Hiroshi YAMAZAKI
Department of Dental and Oral Surgery, Medical. School, Kobe University
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Masuro WAKABAYASHI
Department of Dental and Oral Surgery, Medical. School, Kobe University
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Osamu TERANOBU
Department of Dental and Oral Surgery, Medical. School, Kobe University