Funding for this research was provided by:
Fonds Wetenschappelijk Onderzoek (G.0A22.12N)
Japan Society for the Promotion of Science (International Research Fellow (Postdoctoral Fellowships for Research in Japan [Standard]))
Text and Data Mining valid from 2018-12-15
Accepted: 7 December 2018
First Online: 15 December 2018
Compliance with ethical standards
: The author declares that she has no conflict of interest.