Funding for this research was provided by:
H2020 Marie Skłodowska-Curie Actions (ETN-GA-2015-675762)
Text and Data Mining valid from 2019-11-23
Received: 21 December 2018
Accepted: 9 November 2019
First Online: 23 November 2019
Compliance with ethical standards
: On behalf of all authors, the corresponding author states that there is no conflict of interest.