@article{article209b9a71, title = {Estimating the impact of implementation and timing of the COVID-19 vaccination programme in Brazil: a counterfactual analysis}, author = {Ferreira, Leonardo Souto and Prado, Paulo InĂ¡cio}, year = {2023}, doi = {10.1016/j.lana.2022.100397}, journal = {The Lancet Regional Health - Americas} }