Md Erfan Uddin, Rabiul Alam, et al. “Pharmacovigilance of COVID-19 Vaccine Among Health Care Workers in Chittagong Medical College Hospital”. Journal of Chittagong Medical College Teachers’ Association, vol. 33, no. 1, June 2022, pp. 4-8, doi:10.3329/jcmcta.v33i1.66903.