“A Comparative Study of the Effectiveness of Pfizer-BioNTech (BNT162b2), Astra Zeneca (ChAdOx1nCoV-19) and Sinopharm (BBIBP-CorV) Vaccines in Eliciting Humoral Immunity in a Sample of Vaccinated Population from Iraq”. 2023. Bangladesh Journal of Medical Science 22 (3): 553-63. https://doi.org/10.3329/bjms.v22i3.65323.