1Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan,
2Global Center of Excellence for Tooth and Bone Research, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan,
3Department of Periodontology, Osaka Dental University, 1-5-17, Otemae, Chuo-ku, Osaka, 540-0008, Japan,
4Department of Human Pathology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
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Corresponding author:
Yuichi Izumi , Tel: +81-(0)3-5803-5486,