Villa-Mancera, Abel http://orcid.org/0000-0002-5997-5641
Pastelín-Rojas, César
Olivares-Pérez, Jaime
Córdova-Izquierdo, Alejandro
Reynoso-Palomar, Alejandro
Article History
Received: 18 August 2017
Accepted: 21 March 2018
First Online: 28 March 2018
Compliance with ethical standards
:
: The authors declare that they have no competing interests.