Rajab Saeid Mashathi RS, Lameen AA, Mussa Abdulgader EA. An observational study of side effects associated with COVID-19 vaccines among samples at El-Marj City. sjst [Internet]. 2022 Jun. 19 [cited 2025 Nov. 23];1(02):74-89. Available from: https://j.istc.edu.ly/index.php/sjst/article/view/19