Periodontitis Exacerbates and Promotes the Progression of Chronic Kidney Disease Through Oral Flora, Cytokines, and Oxidative Stress oleh Ling Li, Ya-Li Zhang, Xing-Yu Liu, Xiang Meng, Rong-Quan Zhao, Lin-Lin Ou, Bao-Zhu Li, Tian Xing, Tian Xing