Received: 20 January 2020
Accepted: 1 April 2020
First Online: 16 April 2020
Ethics approval and consent to participate
: This cross-sectional study was approved by the Research Ethics Committee of the Federal University of Jequitinhonha and Mucuri Valleys (UFVJM), by protocol 026/12 and conducted according to the Declaration of Helsinki, 1975, revised in 2013. Written informed consent was obtained from all participants prior the study begins.
: Not applicable.
: The authors declare that they have no competing interests.