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*Asako Makino
Tokyo Dental College, Department of Periodontology
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Shigeki Yamamoto
Tokyo Dental College, Department of Periodontology
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Kenshi Makino
Tokyo Dental College, Department of Periodontology
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Masatake Tsunoda
Tokyo Dental College, Department of General Dentistry
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Satoru Yamada
Tokyo Dental College, Department of Periodontology