Jose, K. P., P. Rajan, S. S. Guddad, and V. K. Kamath. “TNF – α Polymorphism In Periodontitis: A Review: TNF – α Polymorphism In Periodontitis: A Review”. National Journal of Integrated Research in Medicine, vol. 6, no. 6, Jan. 2018, pp. 79-82, doi:10.70284/njirm.v6i6.1025.