Funding for this research was provided by:
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (001)
Text and Data Mining valid from 2019-07-11
Received: 7 May 2019
Accepted: 1 July 2019
First Online: 11 July 2019
Ethics approval and consent to participate
: The patients signed an informed consent form before participating in the study. Each center submitted its study protocol to the local Ethics Committee because the study was a multicenter study.
: Not applicable.
: The authors declare that they have no competing interests.