Funding for this research was provided by:
Universidade Federal do Rio Grande do Norte
Received: 21 January 2020
Accepted: 23 February 2020
First Online: 2 March 2020
Ethics approval and consent to participate
: This study was approved, and data were collected after a favorable opinion was issued (no 1,299,474) by the Research Ethics Committee (<i>CEP</i>) of the educational institution involved – the Federal University of Rio Grande do Norte (UFRN) - Brazil. Informed consent in writing was obtained from all participants.
: Informed consent in writing was obtained from all participants.
: The authors declare that they have no competing interests.