Matos, Camila Carvalho de Souza Amorim, Carolina Luísa Alves Barbieri, and Marcia Thereza Couto. “Covid-19 and Its Impact on Immunization Programs: Reflections from Brazil”. Revista de Saúde Pública 54 (December 15, 2020): 114. Accessed April 13, 2025. https://journals.usp.br/rsp/article/view/179934.