Funding for this research was provided by:
Internacional Radial IEB High School ($315.00)
Article History
Received: 31 March 2021
Accepted: 7 September 2021
First Online: 30 September 2021
Declarations
:
: The authors have no conflicts of interest to declare.
: All procedures were in accordance with the ethical standards of the Responsible Committee on Human Experimentation (Institutional and National) and with the Helsinki Declaration of 1964 and its later amendments. The protocol for this study was approved by the Research Ethics Committee of the Mackenzie Presbyterian Institute under number CAAE: 38711120.8.0000.0084.
: Written informed consent was obtained from all the participants of this study (or their parent or legal guardian in the case of children under 16 years of age) for participation and publication of their data.
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