“Activity of The Enzymes: Alkaline Phosphatase, 5-Nucleotidase and Acetylcholine Esterase in The Blood and Synovial Fluid for Some Rheumatoid Arthritis Patients”. 2008. Rafidain Journal of Science 19 (4): 26-36. https://doi.org/10.33899/rjs.2008.41560.