Funding for this research was provided by:
Dutch Foundation for Fundamental Research on Matter
Text and Data Mining valid from 2018-08-21
Received: 5 April 2018
Accepted: 16 July 2018
First Online: 21 August 2018
Change Date: 6 September 2018
Change Type: Update
Change Details: This Article was originally published without the accompanying Peer Review File. This file is now available in the HTML version of the Article; the PDF was correct from the time of publication.
: The authors declare no competing interests.