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Yoshiko YAMAGUCHI
Department of Preventive Dentistry, Kyushu Dental College
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Yoshisa YAMASHITA
Department of Preventive Dentistry, Kyushu Dental College
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Ryuji SHIRAHAMA
Nishi Public Health Center, Kumamoto City
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Akira SOGAME
Health and Environmental Department, Fukuoka Prefectural Government
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Hideo MIYAZAKI
Department of Preventive Dentistry, Kyushu Dental College
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Tadamichi TAKEHARA
Department of Preventive Dentistry, Kyushu Dental College