Funding for this research was provided by:
Research Support Foundation of the Federal District, Brazil (0193.000953/2015)
Text and Data Mining valid from 2018-07-24
Received: 15 May 2018
Accepted: 13 July 2018
First Online: 24 July 2018
Ethics approval and consent to participate
: The study was approved by the Research Ethics Committee of the University of Brasília School of Health Sciences (protocol no. 53175015.6.00000030). All schools and parents or legal guardians (for students aged less than 18 years) will be asked to provide written consent before the study is initiated. Students’ written assent will also be obtained. All the information needed before and during the research will be provided and the participants’ names will appear not, maintaining the strictest confidentiality by the total omission of any information that can identify the participants.
: Not applicable.
: The authors declare that they have no competing interests.
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