Mathis, Dominic T. http://orcid.org/0000-0003-0081-7734
Büel, Lukas
Rasch, Helmut
Amsler, Felix
Hirschmann, Michael T.
Hügli, Rolf W.
Article History
Received: 10 November 2018
Accepted: 16 December 2018
First Online: 3 January 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interests.
: 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.
: All patients gave their informed consent and the study was approved by the local ethical committee (Ethikkommission Nordwest- und Zentralschweiz 2016-01509).