Funding for this research was provided by:
Received: 29 October 2020
Accepted: 7 January 2021
First Online: 19 January 2021
Ethics approval and consent to participate
: Approved by the Ethics Committee at Universidad de Santiago de Chile (14/2020). All participants received oral explanations about the objectives of the study, and informed written consent was obtained.
: The authors declared that they had no conflicts of interest in this research.