Urrutia, Julio http://orcid.org/0000-0003-1757-1144
Besa, Pablo
Lobos, Daniel
Campos, Mauricio
Arrieta, Cristobal
Andia, Marcelo
Uribe, Sergio
Article History
Received: 3 November 2017
Revised: 26 December 2017
Accepted: 8 January 2018
First Online: 29 January 2018
Compliance with ethical standards
:
: The authors declare that they have no conflicts of interest