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Gen-iku KOHAMA
Department Of Oral Surgery, Sapporo Medical College
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Isao FURUTA
Department Of Oral Surgery, Sapporo Medical College
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Hiroshi IWAKI
Ist Department of Oral Surgery, School of Dentistry Tokyo Medical and Dental University
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Kenji KIYOTA
Ist Department of Oral Surgery, School of Dentistry Tokyo Medical and Dental University