Alimehmeti, Ilir. “Efficacy and Safety of AZD1222, BNT162b2 and MRNA-1273 Vaccines Against SARS-CoV-2”. Albanian Journal of Trauma and Emergency Surgery 5, no. 1 (January 20, 2021): 791-796. Accessed March 28, 2024. https://journal.astes.org.al/index.php/AJTES/article/view/178.