Stuermer, Konrad Johannes
Schwarz, David
Anagiotos, Andreas
Lang-Roth, Ruth
Hüttenbrink, Karl-Bernd
Luers, Jan Christoffer
Article History
Received: 23 October 2017
Accepted: 22 January 2018
First Online: 7 February 2018
Compliance with ethical standards
:
: All authors contributed substantially to the paper in conception, design and writing. There was no financial support, no funding and no conflict of interest during the preparation of this article. This material has never been published and is not currently under evaluation in any other peer-reviewed publication.
: The study meets the requirements of the local ethics committee (institutional review board).