Jihan Qais Dakhal AL-lamy and Ahmed D. Jabbar (2022) “Effectiveness of the Pfazer vaccine against COVID-19 patients in chronic diseases”., Eurasian Medical Research Periodical, 11, pp. 17–23. Available at: https://geniusjournals.org/index.php/emrp/article/view/2037 (Accessed: 15 November 2024).