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. 2021 Apr 8;9:641253. doi: 10.3389/fpubh.2021.641253

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Copyright © 2021 da Silva, de Lima, da Silva, Silva, Marques, de Araújo, Albuquerque Júnior, de Souza, de Santana, Gomes, Barbosa, Musah, Kostkova, dos Santos and da Silva Filho.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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The Brazilian territory is divided in five main regions: North, Northeastern, Midwest, Southern, and South. Brazil has a population of ~210,147,125 million inhabitants, according to Brazilian Institute for Geography and Statistics - IBGE (A). Pernambuco is one of Brazil's 27 federative units, and it is located in the Northeast Region (B) of the country. Its population, according to IBGE, is ~9,557,071 million inhabitants.