Funding for this research was provided by:
Hospital de Clínicas de Porto Alegre (170576)
Received: 9 August 2019
Accepted: 13 January 2020
First Online: 15 February 2020
Ethics approval and consent to participate
: This study was approved by Ethics Committee of the HCPA number 3.227.637.
: Not applicable.
: The authors declare that they have no competing interests.