Mayr, Roman
Fritsche, Hans-Martin
Zeman, Florian
Reiffen, Marieke
Siebertz, Leopold
Niessen, Christoph
Pycha, Armin
van Rhijn, Bas W. G.
Burger, Maximilian
Gierth, Michael
Article History
Received: 19 January 2018
Accepted: 5 March 2018
First Online: 8 March 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.