COVID-19 Mortality: Impact on benefits for retirees in a state pension plan. SciELO Preprints, 2026. DOI: 10.1590/1808-057x20252319.en. Disponível em: https://preprints.scielo.org/index.php/scielo/preprint/view/15865. Acesso em: 15 maio. 2026.