Ahmed, S. A. ., A.Ali, G. M., Sultan, S. M., & Hammed, A. E. . (2021). Evaluation of serum level of trace elements (iron, zinc ) in patients with celiac disease (Review study). NTU Journal of Pure Sciences, 1(1), 27–37. https://doi.org/10.56286/ntujps.v1i1.132