Funding for this research was provided by:
CNPq (303752/2015-7, 301805/2013-0, 305068/2014 to EB, 303422/2015-7, 301479/2015-1)
Received: 5 September 2019
Accepted: 19 January 2020
First Online: 1 February 2020
Ethics approval and consent to participate
: It was granted as a national multicentric protocol under n 264.656/CAAE 09231912.2.2003.541 on May 6th 2013.
: It was given according to ethical standards and authorship policy.
: The authors declare that they have no competing interests.