Keller, Etienne Xavier http://orcid.org/0000-0003-1667-7609
Doizi, Steeve
Villa, Luca
Traxer, Olivier http://orcid.org/0000-0002-2459-3803
Article History
Received: 7 January 2019
Accepted: 5 February 2019
First Online: 15 February 2019
Compliance with ethical standards
:
: Prof. Olivier Traxer is a consultant for Coloplast, Rocamed, Olympus, EMS, Boston Scientific and IPG Medical. Dr. Steeve Doizi is a consultant for Coloplast. Dr. Etienne Xavier Keller is supported by a Travel Grant from the University Hospital Zurich and by a grant from the Kurt and Senta Herrmann Foundation.
: All the 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.
: No informed consents were necessary for this study, since no research directly involving human participants and/or animals was performed in this study.