Randa Eltayeb, Adil Younis, Mohammed Elamin and F. A. Al Mostafa (2025) “Cross-sectional Studies in Clinical Researches”, International Journal of Mathematics And its Applications, 13(1), pp. 37–45. Available at: https://ijmaa.in/index.php/ijmaa/article/view/1546 (Accessed: 21 April 2025).