Yuniza, Nova Kurniati, Zen Ahmad, Nurmalia Purnama Sari, and Msy Rita Dewi, “Comparison of Post Vaccination Antibody Levels for Coronavirus Disease 2019 (COVID-19) between Survivors and Non-Survivors of COVID-19”, Bioscmed, vol. 6, no. 17, pp. 2920-2925, Jan. 2023.