Funding for this research was provided by:
Bundesministerium für Bildung und Forschung (031A227A)
Jürgen Manchot Stiftung (000)
Text and Data Mining valid from 2019-04-16
Received: 7 December 2018
Revised: 11 March 2019
Accepted: 12 March 2019
First Online: 16 April 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.