Funding for this research was provided by:
Wellcome Trust (086974/Z/08/Z)
Text and Data Mining valid from 2018-08-22
Received: 15 March 2018
Accepted: 17 August 2018
First Online: 22 August 2018
Ethics approval and consent to participate
: This study was conducted according to the guidelines laid down in the Declaration of Helsinki and all procedures involving human subjects/patients were approved by the Ethics Committee in Research of the School of Medicine of the Federal University of Pelotas (Protocol number: 05/11). Written informed consent was obtained from all participants prior to each follow-up.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.