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Florêncio RB, de Araújo Fonseca LG, da Silva VFD, Lima ÍNDF, Gualdi LP.Florêncio RB, et al.BMC Public Health. 2021 Feb 25;21(1):403. doi: 10.1186/s12889-021-10438-z.BMC Public Health. 2021.PMID: 33632201Free PMC article.
Frazão M, Cabral E, Lima I, Resqueti V, Florêncio R, Aliverti A, Fregonezi G.Frazão M, et al.Respir Physiol Neurobiol. 2014 Jul 1;198:42-7. doi: 10.1016/j.resp.2014.04.002. Epub 2014 Apr 19.Respir Physiol Neurobiol. 2014.PMID: 24751473Free article.