Funding for this research was provided by:
Austrian Science Fund (W1224, P22118-B20)
Text and Data Mining valid from 2019-08-08
Received: 27 March 2019
Revised: 2 July 2019
Accepted: 18 July 2019
First Online: 8 August 2019
Compliance with ethical standards
: The authors declare that they have no conflicts of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.