Cervera Torres, Sergio http://orcid.org/0000-0003-1689-4654
Ruiz Fernández, Susana
Lachmair, Martin
Gerjets, Peter
Article History
Received: 8 March 2017
Accepted: 2 January 2018
First Online: 12 January 2018
Ethical approval
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the Helsinki declaration 1964 and its later amendments or comparable ethical standards. The manuscript does not contain clinical studies or patient data, and informed consent was obtained from all individual participants included in the study.
: The authors declare that they have no conflict of interest.
: Informed consent was obtained from all individual participants included in the study.
: The dataset generated during and/or analyzed during the current study are available in the Figshare repository, ExternalRef removed, ExternalRef removed.