Goebel, Simone http://orcid.org/0000-0001-6285-9097
Steinmann, Elisabeth
Leplow, Bernd
Mehdorn, H. Maximilian
Article History
Received: 18 December 2017
Accepted: 28 March 2018
First Online: 14 April 2018
Compliance with ethical standards
: The study was approved by the appropriate ethics committee.
: The authors declare that they have no conflict interest.