Mossa M. Marbut, Mena D. Mustafa, and Jawad A. Salih. 2017. “Study of Parathyroid Gland Function in Normal Pregnant Women in Tikrit City”. Journal of Madenat Alelem University College 9 (2), 1-14. https://journal.mauc.edu.iq/index.php/JMAUC/article/view/67.