Funding for this research was provided by:
Fondo Nacional de Desarrollo Científico, Tecnológico y de Innovación Tecnológica (173-2015)
Received: 3 October 2019
Accepted: 3 February 2020
First Online: 14 February 2020
Ethics approval and consent to participate
: The study was approved by the Institutional Committee of Ethics for Humans (CIEI, approval number: 158–22–16), an autonomous committee established by the Universidad Peruana Cayetano Heredia, with the authorization of National Institute of Health in Peru. Written informed consent was obtained from all participants or their legally responsible guardians, and all clinical investigations were conducted according to the principles expressed in the Declaration of Helsinki and local and national Peruvian regulations.
: Not Applicable.
: The authors declare that they have no competing interests.