Funding for this research was provided by:
Text and Data Mining valid from 2016-07-16
Received: 3 April 2016
Accepted: 30 June 2016
First Online: 16 July 2016
Change Date: 13 April 2020
Change Type: Clarification
Change Details: Editors Note: The Editor-in-Chief would like to alert readers that this article has been incorrectly labelled as a review article when it is instead an opinion piece.