Text and Data Mining valid from 2018-04-02
Received: 8 July 2017
Accepted: 6 March 2018
First Online: 2 April 2018
Ethics approval and consent to participate
: All data used for this study were from obtained from publicly available datasets. This study was approved as exempt by the University of Western Ontario Research Ethics Board and as non-human subjects research by the West Virginia University Institutional Review Board.
: The authors declare that they have no competing interests.
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