Grossi, Juliana de Aguiar
Cabral, Renata Nunes
Ribeiro, Ana Paula Dias
Leal, Soraya Coelho https://orcid.org/0000-0002-4834-0210
Article History
Received: 26 June 2017
Accepted: 12 April 2018
First Online: 18 April 2018
Ethics approval and consent to participate
: This study was approved by the Research Ethics Committee of the University of Brasilia, Brazil (CAAE-31973413.0.0000.0030), registered as a clinical trial in the Brazilian Registry of Clinical Trials (REBEC-RBR-8drccq), and supported by the local Secretary of Education. Children were invited to join the study and objectives were explained to the parents, who then signed an informed consent form.
: The authors declare that they have no competing interests.
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