Funding for this research was provided by:
Deutsche Forschungsgemeinschaft (STO 824/3-1)
Staedtler Stiftung (WW/eh 13/17)
Text and Data Mining valid from 2018-05-02
Received: 18 December 2017
Accepted: 27 March 2018
First Online: 2 May 2018
Ethics approval and consent to participate
: This study does not involve human participants, human data or human tissue. All experiments involving animals were performed with the approval of the local ethics authorities (Government of Mittelfranken, Ansbach, Germany) and according to the regulations of the animal facilities in Germany.
: The authors declare that they have no competing interests.
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