[1] Xiang Li, et al., (2021). Estimating the health impact of vaccination against ten pathogens in 98 low-income and middle-income countries from 2000 to 2030: a modelling study. The Lancet, DOI: https://doi.org/10.1016/S0140-6736(20)32657-X
[2] Adam L Cohen, Minal K Patel, Thomas Cherian. (2021). Vaccines work: a reason for celebration and renewed commitment. The Lancet, DOI: https://doi.org/10.1016/S0140-6736(21)00025-8
[3] The Lancet: Study estimates that, without vaccination against 10 diseases, mortality in children under five would be 45% higher in low-income and middle-income countries. Retrieved January 29, 2020, from https://www.eurekalert.org/pub_releases/2021-01/tl-pss_1012821.php