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Authors
Caqueo-Urízar, Alejandra
Flores, Jerome
Escobar, Carolang
Urzúa, Alfonso
Irarrázaval, Matías
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Funding
Funding for this research was provided by:
Comisión Nacional de Investigación Científica y Tecnológica (ANID PIA CIE160007)
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Article History
Received: 11 September 2019
Accepted: 24 February 2020
First Online: 5 March 2020
Ethics approval and consent to participate
: Before the start of the study, written informed consent was requested and received from the parents of the children. Also an informed consent was requested from all students. The objectives of the study were explained as well as the voluntary nature of participation. No compensation was offered for participating in the study. The study was approved by the Ethics Committee of the University of Tarapacá.
: Not Applicable.
: The Authors have declared that they have no competing interest.
