Funding for this research was provided by:
Horizon 2020 Framework Programme (633962)
Text and Data Mining valid from 2018-02-15
Received: 8 December 2017
Revised: 1 February 2018
Accepted: 2 February 2018
First Online: 15 February 2018
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.