Roldan-Valadez, Ernesto http://orcid.org/0000-0002-7116-5289
Salazar-Ruiz, Shirley Yoselin
Ibarra-Contreras, Rafael
Rios, Camilo
Article History
Received: 24 August 2018
Accepted: 15 November 2018
First Online: 3 December 2018
Compliance with ethical standards
: This article does not contain any studies with human participants or animals performed by any of the authors.
: For this type of formal study, consent is not required.
: The authors declare that they have no conflict of interest.