Karger, Christian http://orcid.org/0000-0002-9428-1899
Machura, Katharina
Schneider, André
Hugo, Christian
Todorov, Vladimir T.
Kurtz, Armin
Article History
Received: 19 December 2017
Revised: 26 January 2018
Accepted: 1 February 2018
First Online: 17 February 2018
Compliance with ethical standards
: All experiments were conducted according to the National Institutes of Health guidelines for care and use of animals in research. The experiments were approved by the local government.