Kalberer, Nina http://orcid.org/0000-0001-9828-8425
Frima, Herman http://orcid.org/0000-0002-5913-5685
Michelitsch, Christian
Kloka, Jan
Sommer, Christoph
Article History
Received: 24 June 2019
Accepted: 2 August 2019
First Online: 28 August 2019
Compliance with ethical standards
:
: All 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 (Kantonale Ethikkommission Zürich, BASEC-Nr. 2017 – 01650) 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.