Shaymaa Hasan Abbas, Rasha Saadi Abbas, Lubab Tarek Nafea. Severity and Risk of Death Due to COVID 19 . AJPS [Internet]. 2022 Apr. 18 [cited 2024 May 19];20(4):1-12. Available from: https://ajps.uomustansiriyah.edu.iq/index.php/AJPS/article/view/769