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Genzaburo Masuda
Department of Dento-Oral Surgery, Yokohama City Kowan Hospital Yofukai Takadai Hospital
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Syouichi Matsuzaki
Yofukai Takadai Hospital Departrnent of Oral Surgery, School of Medicine, Yokohama City University
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Satoshi Umino
Department of Dento-Oral Surgery, Yokohama City Kowan Hospital Departrnent of Oral Surgery, School of Medicine, Yokohama City University
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Toshiyuki Nakajima
Nakalima Dental Clinic
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Nobuo Kitahara
Yofukai Takadai Hospital