Primary healthcare protects vulnerable populations from inequity in COVID-19 vaccination: An ecological analysis of nationwide data from Brazil

por Bastos, Leonardo S.L., Aguilar, Soraida, Rache, Beatriz, Maçaira, Paula, Baião, Fernanda, Cerbino-Neto, José, Rocha, Rudi, Hamacher, Silvio, Ranzani, Otavio T., Bozza, Fernando A.
Publicado 2022