Slieker, J. http://orcid.org/0000-0002-9447-9782
Hübner, M. http://orcid.org/0000-0002-4521-8279
Addor, V. http://orcid.org/0000-0003-2859-3971
Duvoisin, C. http://orcid.org/0000-0003-0173-2791
Demartines, N. http://orcid.org/0000-0002-1530-3114
Hahnloser, D. http://orcid.org/0000-0002-5595-4114
Article History
Received: 11 September 2017
Accepted: 5 February 2018
First Online: 3 May 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in this study involving human participants were in accordance with the ethical standards of the institutional and regional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: For this type of study formal consent was not required.