Al ani B, بان, Altai M, محمود. Application of Poisson’s Hierarchical Regression Model to the Deaths of Covid-19 in Mosul City Hospitals. IQJOSS [Internet]. 2025 Jun. 25 [cited 2025 Aug. 6];19(2):1-14. Available from: https://rjps.uomosul.edu.iq/index.php/stats/article/view/20900