Melo Neto, A.J. de et al. 2021. Quaternary prevention and the prescription of Chloroquine and Hydroxychloroquine in COVID-19: are they worth the risk?. Revista Brasileira de Medicina de Família e Comunidade. 16, 43 (Jul. 2021), 2573. DOI:https://doi.org/10.5712/rbmfc16(43)2573.