Coronavirus, the teacher of the catastrophe: lessons learnt about Public Health System and the relationship between public and private sectors. SciELO Preprints, 2020. DOI: 10.1590/1981-7746-sol00281. Disponível em: https://preprints.scielo.org/index.php/scielo/preprint/view/638. Acesso em: 5 nov. 2026.