Text and Data Mining valid from 2018-03-05
Received: 25 August 2016
Accepted: 11 December 2017
First Online: 5 March 2018
Change Date: 19 March 2018
Change Type: Correction
Change Details: In the version of this article initially published online, the fifth author’s name was given as Alexander Amlie-Wolf. The correct name is Alexandre Amlie-Wolf. The error has been corrected in the print, PDF and HTML versions of this article.
: The authors declare no competing interests.