Ruisoto, Pablo
Juanes, Juan A.
Article History
Received: 20 December 2018
Accepted: 30 January 2019
First Online: 7 February 2019
Compliance with Ethical Standards
: 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. Verbal informed consent was obtained from all individual participants included in the study.
: All authors, Pablo Ruisoto and Juan A Juanes, declare that they have no conflict of interest.