2016. Isolation and Purification of a Cyclooxygenase-2 from the Blood of a Patient Suffering from Rheumatoid Arthritis and Studying the Effect of Natural Products of the Soapwort on the Activity of Purified Enzyme. Baghdad Science Journal. 13, 1 (Mar. 2016), 0133. DOI:https://doi.org/10.21123/bsj.2016.13.1.0133.