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*Mayako Akamatsu
Department of Dentistry and Oral Surgery, School of Medicine, Keio University
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Yasuo Hosaka
Department of Dentistry and Oral Surgery, School of Medicine, Keio University
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Akihiko Katayama
Kanda Dental clinic
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Chie Fukaya
Department of Dentistry and Oral Surgery, School of Medicine, Keio University
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Akira Maeda
Department of Dentistry and Oral Surgery, School of Medicine, Keio University
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Taneaki Nakagawa
Department of Dentistry and Oral Surgery, School of Medicine, Keio University