Funding for this research was provided by:
Magyar Tudományos Akadémia ("Big Data - Momentum")
EU H2020 (Streamline No 688191)
Text and Data Mining valid from 2018-08-14
Received: 13 March 2018
Accepted: 9 July 2018
First Online: 14 August 2018
: The authors declare that they have no competing interests.
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