Csendes, Attila https://orcid.org/0000-0002-7524-8057
Orellana, Omar
Martínez, Gustavo
Burgos, Ana María
Figueroa, Manuel
Lanzarini, Enrique
Article History
First Online: 3 October 2019
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: All patients gave their written informed consent to be included in this study, unique identifying registration number 3744.
: All procedures in human participants were conducted following the Institution and Ministerial Committee and with the 1961 Helsinki declaration and its later amendments or comparable ethical standards.