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Park, Jang-Yeol; Koo, Ki-Tae; Kim, Tae-Il; Seol, Yang-Jo; Ku, Young; Chung, Chong-Pyoung; Rhyu, In-Chul; Lee, Yong-Moo
Journal of Periodontal and Implant Science; Vol.40, No.5, pp.227-231