Comparative IgG antibody titers following second dose of Sinopharm and Pfizer vaccination. - Tanveer, Hira; Zaffar, Sehrish; Osama, Muhammad; Ishaq, Isma; Malik, Javaria Arshad; Bilal, Rabiea; Talat, Afnan; Talat, Aisha (Biomedica, 2023)