The importance of the 23-Valent Pneumococcal Polysaccharide Vaccine (PPSV23) in the prevention of pneumococcal diseases in Brazil. Acervo Saúde [Internet]. 2021 Oct. 13 [cited 2026 Nov. 3];13(10):e8981. Available from: https://acervomais.com.br/saude/article/view/8981