Funding for this research was provided by:
DFG (LE 2750/5-1, SP1380/1-1)
Text and Data Mining valid from 2019-03-13
Received: 15 November 2018
Revised: 13 February 2019
Accepted: 14 February 2019
First Online: 13 March 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: All applicable international, national, and/or institutional guidelines for the care and use of animals were followed.