G. da S. Gaspar, N. Figueiredo, E. H. G. de . Lucena, C. A. S. Ceissler, R. P. Cavalcanti, and P. S. A. de . Goes, “Characterization of dental surgeons of Pernambuco in the COVID-19 pandemic context: preliminary data”., SciELO Preprints. Jun. 23, 2020. doi: 10.1590/SciELOPreprints.832.