Text and Data Mining valid from 2018-01-15
Received: 9 March 2017
Accepted: 1 December 2017
First Online: 15 January 2018
Change Date: 8 August 2018
Change Type: Correction
Change Details: In the HTML version of this article initially published, the name of author Diletta Di Mitri was miscoded in the XML such that Di was included as part of the given name instead of the family name. The error has been corrected in the HTML version of the article.
: The authors declare no competing financial interests.