Schmid, Florian A.
Wettstein, Marian S.
Kessler, Thomas M.
Hermanns, Thomas
Boss, Andreas
Hötker, Andreas M.
Eberli, Daniel
Article History
Received: 17 June 2019
Accepted: 5 September 2019
First Online: 19 September 2019
Compliance with ethical standards
:
: The 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 (local ethical review board “Kantonale Ethikkomission Zürich”, study approval: KEK-StV-Nr. 06/08) 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.