Koç, İbrahim, and Yusuf Taha Gullu. “How to Differentiate the B.1.1.7 Variant from COVID-19 in Hospitalized Patients?”. The European Research Journal 8, no. 5 (September 3, 2022): 629–635. Accessed April 5, 2026. https://eurj.org.tr/article/view/675.