Funding for this research was provided by:
Austrian Science Fund (FWF 28489-B29)
Text and Data Mining valid from 2018-02-06
Received: 31 October 2017
Accepted: 16 January 2018
First Online: 6 February 2018
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: This chapter does not contain any studies with human participants or animals performed by any of the authors.
: Informed consent was obtained from all individual participants included in the study.