Article History
Received: 3 July 2018
Accepted: 12 August 2018
First Online: 20 August 2018
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: Ethical approval was obtained from the Ethikkommission Nordwest-und Zentralschweiz (EKNZ, Basel, Switzerland).
: 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.
: Consent for publication was obtained for every individual person’s data included in the study.