Yousif, A.M., Ismail, P.A., Ismail, N.A. and Ismail, N.A. 2021. Comparison of Some Indicators in Serum and Saliva on Periodontitis. Iraq Medical Journal. 5, 4 (Dec. 2021). DOI:https://doi.org/10.22317/imj.v5i4.1140.