Aeed Hasan Alwan Alwan, and Dr. Khattab Algbouri. “Refusal to Undergo PCR Testing for COVID-19, Tikrit 2021, a Cross-Sectional Study ”. American Journal of Biomedicine and Pharmacy 2, no. 5 (May 31, 2025): 271–278. Accessed July 5, 2025. https://biojournals.us/index.php/AJBP/article/view/1062.