Thilagar, Sivasankari Comparison of serum tumor necrosis factor-α levels in rheumatoid arthritis individuals with and without chronic periodontitis: A biochemical study. [electronic resource] - Journal of Indian Society of Periodontology - 116-121 p. digital Publication Type: Journal Article ISSN: 0972-124X Standard No.: 10.4103/jisp.jisp_362_17 doi