Abdulsalam Mohammed , Paiman, and Muayad Aghali Merza. “Charcterization of COVID-19 Hospitalized Adult Patients, Vaccinated Vs Non-Vaccinated in Duhok Province”. Journal of Contemporary Medical Sciences 8, no. 6 (December 26, 2022): 375–381. Accessed January 29, 2023. https://jocms.org/index.php/jcms/article/view/1272.