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Yuji Sato
Department of Geriatric Dentistry, Showa University School of Dentistry
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Yasuyuki Iwasa
Department of Dentistry, Haradoi Hospital
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Yoshihiko Watanabe
Faculty of Health Sciences, Tohoku Fukushi University
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Hitomi Arimatsu
Oita Prefecture Dental Hygienists Association
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Kayoko Ito
Niigata University Medical and Dental Hospital
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Nobuko Kaneko
Naniwa College of Dental Hygiene
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Keiko Motokawa
Tokyo Metropolitan Institute of Gerontology
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George Umemoto
Fukuoka University Hospital