Al-Dhalimi , M.A. et al. 2013. Measurement Serum Levels of IFNY, IL-17 and IL-4 of Psoriasis patients in Al- Najaf City. Kufa Journal for Nursing Sciences. 3, 3 (Dec. 2013), 1–7. DOI:https://doi.org/10.36321/kjns.vi20133.2514.