Text and Data Mining valid from 2018-04-03
Received: 10 July 2017
Accepted: 22 March 2018
First Online: 3 April 2018
Ethics approval and consent to participate
: This study was approved by the Human Subjects Review Board at the University of Arizona with a waiver of consent as this study used anonymous aggregated data. This study was considered exempt by the Microsoft Institutional Review Board.
: Not applicable.
: EYT is an employee of Microsoft, owner of Bing.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.