Sulaiman M. Hasan. “Investigation of Some Immunological Markers in Covid-19 Vaccinated Individuals: A Review Article”. International Journal for Research in Applied Sciences and Biotechnology 8, no. 5 (September 30, 2021): 22–31. Accessed July 16, 2024. https://ijrasb.com/index.php/ijrasb/article/view/212.