Post-vaccination incidence and side effects of COVID-19 in a cohort of Brazilian healthcare professionals: an internet-based survey - Ballestero, Matheus Fernando Manzolli; Souza, Renato Lucas Passos de; Sakae, Thiago Mamoru; Costa, Luiz Guilherme Villares da; Furlanetti, Luciano; Oliveira, Ricardo Santos de (Einstein, 2022)