Maldonado-Hernández, Jorge http://orcid.org/0000-0002-7592-7025
Martínez-Basila, Azucena http://orcid.org/0000-0003-4147-5240
Rendón-Macías, Mario Enrique http://orcid.org/0000-0001-7310-6656
López-Alarcón, Mardia http://orcid.org/0000-0001-8017-4390
Funding for this research was provided by:
Consejo Nacional de Ciencia y Tecnología (068915)
Instituto Mexicano del Seguro Social (FIS/IMSS/PROT 2007-3603-18)
Article History
Received: 25 January 2019
Accepted: 1 March 2019
First Online: 6 April 2019
Compliance with ethical standards
:
: Authors declare that no competing financial interests exist.
: The protocol was approved by the Ethics Committee of the Instituto Mexicano del Seguro Social and with the 1964 Helsinki declaration (Approval Number: R-2007-3603-18).
: Informed consent was obtained from all individual participants included in the study before the study protocol initiated.