Abdul-Qahar, Zina H., et al. “Measurement of Anti-Cyclic Citrullinated Peptide, Leptin Hormone, and Lipoprotein (a) In Iraqi Female Patients With Rheumatoid Arthritis”. Journal of the Faculty of Medicine Baghdad, vol. 56, no. 3, Oct. 2014, pp. 305-7, https://doi.org/10.32007/jfacmedbagdad.563507.