Effect of COVID 19 vaccination on the CT severity score for SARS CoV2 pneumonia- an experience from the initial wave. Brazilian Journal of Radiation Sciences, Rio de Janeiro, Brazil, v. 11, n. 3, p. 1–11, 2023. DOI: 10.15392/2319-0612.2023.2279. Disponível em: https://www.bjrs.org.br/revista/index.php/REVISTA/article/view/2279.. Acesso em: 20 may. 2024.