Funding for this research was provided by:
Conselho Nacional de Desenvolvimento Científico e Tecnológico (no. 313053 / 2014-6)
Received: 17 November 2017
Accepted: 20 November 2018
First Online: 12 December 2018
: Not applicable
: The study was approved by the Research Ethics Committee of the Bahia School of Medicine and Public Health, Process 39072514.6.0000.5544. All participants will sign an informed consent form before randomization. The results of this protocol study will be published in peer-reviewed journals as well as at national and international conferences. The data collected will also be made available in a public data repository.
: All subjects give their consent for publication in the informed consent form. However, every attempt will be made to ensure their anonymity.
: The authors declare that they have no competing interests.
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