Iglesias, Oriol
Markovic, Stefan
Singh, Jatinder Jit
Sierra, Vicenta
Article History
Received: 2 August 2016
Accepted: 24 January 2017
First Online: 7 February 2017
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.