Funding for this research was provided by:
Universidad Nacional del Altiplano (without number)
Article History
Received: 14 September 2019
Accepted: 2 October 2019
First Online: 30 October 2019
Compliance with ethical standards
:
: The authors declare that they have no conflicts of interest.
: The study in Puno involved human participants. The procedures performed in the mentioned study involving human participants were in accordance with the ethical standards of the responsible committee on human experimentation and with the Helsinki Declaration of 1975 as revised in 2008. GFG and VP did not participate in any study involving human beings presented in the present article. IRB at the Universidad Peruana Cayetano Heredia approved the study using database.
: An informed consent was obtained from parents before the development of the study in Puno.