Text and Data Mining valid from 2018-06-28
Received: 11 March 2018
Accepted: 19 June 2018
First Online: 28 June 2018
Ethics approval and consent to participate
: All animal procedures were conducted in accordance with the German Protection of Animals Act law and were approved by the regional council Karlsruhe (reference number G-132/15).
: The manuscript contains no data from human subjects.
: The authors declare that they have no competing interests.
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