Funding for this research was provided by:
Australian Research Council (DP150100151)
Text and Data Mining valid from 2017-05-08
Received: 16 November 2016
Revised: 30 March 2017
Accepted: 13 April 2017
First Online: 8 May 2017
Compliance with ethical standards
: The authors declare that they have no competing interests.
: This project was funded by the Australian Research Council project DP150100151.