Kuster, Matthias
Haltmeier, Tobias
Exadaktylos, Aristomenis
Schnüriger, Beat
Article History
Received: 3 April 2018
Accepted: 11 July 2018
First Online: 16 July 2018
Compliance with ethical standards
:
: Matthias Kuster, Tobias Haltmeier, Aristomenis Exadaktylos, and Beat Schnüriger declare that they have no conflict of interest or financial ties.
: This study was approved by the cantonal ethics committee of Bern, Switzerland (KEK No. 353/2015). 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.