Funding for this research was provided by:
Conselho Nacional de Desenvolvimento Científico e Tecnológico (423309/2016)
Higher Education Personnel
Text and Data Mining valid from 2019-08-29
Accepted: 21 August 2019
First Online: 29 August 2019
Compliance with ethical standards
: All authors declare that they have no conflicts of interest.
: The study was approved by the Research Ethics Committee of the Federal University of Amazonas under Protocol No. 57273316.1.0000.5020. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.