Volatility of the COVID-19 vaccine hesitancy: sentiment analysis conducted in Brazil

por Machado Júnior, Celso, Mantovani, Daielly Melina Nassif, de Sandes-Guimarães, Luísa Veras, Romeiro, Maria do Carmo, Furlaneto, Cristiane Jaciara, Bazanini, Roberto
Publicado 2023