López, Michelle
Moreno, Greysi
Lugo, Gustavo
Marcano, Gilmary
Article History
First Online: 1 September 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study was approved by the institution’s Bioethics Committee. Children’s parents were informed in detail about the objectives of the research. A written consent was obtained from parents or representatives and from children over 8 years of age by means of an informed or assent consent, respectively.