Jalal, A.A., AL-Qassab, Z.A. and AL-Rawi, R.A. 2019. Effects of the Systemic Administration of Omega -3 Polyunsaturated Fatty Acid on Experimental Periodontitis. Journal of Contemporary Medical Sciences. 5, 4 (Aug. 2019), 227–233. DOI:https://doi.org/10.22317/jcms.v5i4.661.