LOPEZ LEON, S.; AYUZO , C. .; PERELMAN , C. .; SEPULVEDA , R. .; COLUNGA-PEDRAZA, I. J. .; CUAPIO , A. .; WEGMAN-OSTROSKY , T. . FACE MASKS IN TIMES OF PANDEMICS, A HISTORICAL AND SCIENTIFIC REVIEW AND PRACTICAL RECOMMENDATIONS. SciELO Preprints, 2020. DOI: 10.1590/SciELOPreprints.1551. Disponível em: https://preprints.scielo.org/index.php/scielo/preprint/view/1551. Acesso em: 30 nov. 2022.