Hermanns, Thomas
Grossmann, Nico C.
Wettstein, Marian S.
Keller, Etienne X.
Fankhauser, Christian D.
Gross, Oliver
Kranzbühler, Benedikt
Lüscher, Martin
Meier, Alexander H.
Sulser, Tullio
Poyet, Cédric
Article History
Received: 8 April 2018
Accepted: 12 June 2018
First Online: 19 June 2018
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 and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The study was approved by the local ethics committee (KEK-ZH-Number: 2012-518).
: Informed consent was obtained from all individual participants included in the study.