Funding for this research was provided by:
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Finance Code - 001)
Text and Data Mining valid from 2019-08-30
Received: 7 January 2019
Accepted: 20 August 2019
First Online: 30 August 2019
Compliance with ethical standards
: The authors declare no conflict of interest.
: This study was conducted according to the norms of Resolutions 466/2012 and 510/2016 of the National Health Council. It was approved by the Research Ethics Committee of the Federal University of Piauí (CAAE 04306313.3.0000.5214). All the participants of the research were clarified regarding the objectives of the research and signed a Form of Free and Informed Consent.