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Takeshi KONDO
Department of Community Dentistry, Matsumoto Dental College
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Shouhe Li
Office of the Endenic Diseases Prevention and Treatment, Hebei Province, China
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Hisahide HIGUCHI
Department of Community Dentistry, Matsumoto Dental College
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Takashi NAKANE
Department of Community Dentistry, Matsumoto Dental College
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Kaoru KASAHARA
Department of Community Dentistry, Matsumoto Dental College
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Sumihe YAMANAKA
Department of Hygiene, Tokyo Dental College