Received: 27 November 2019
Accepted: 19 May 2020
First Online: 27 May 2020
Ethics approval and consent to participate
: This study was approved by the Internal Review Board of the Federal University of Piauí and Perola Byington Hospital of the Federal University of Piauí. The written informed consent to participate in the study was be obtained from all participants. No animal was involved in this study.
: Not applicable.
: The authors declare that they have no competing interests.