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*Ok-Su Kim
Department of Periodontology, School of Dentistry, Dental Science Research
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Ji-Sun Ryu
Department of Periodontology, School of Dentistry, Dental Science Research
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Shin-Hwa Lee
Department of Periodontology, School of Dentistry, Dental Science Research
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Sul-Hyun Lee
Department of Periodontology, School of Dentistry, Dental Science Research