Text and Data Mining valid from 2017-10-09
Received: 9 November 2016
Accepted: 29 August 2017
First Online: 9 October 2017
Change Date: 19 October 2017
Change Type: Correction
Change Details: In the version of this Article originally published, the surname of Ted K. Raab was misspelt. This error has now been corrected in all versions of the Article.
: The authors declare no competing financial interests.