Text and Data Mining valid from 2019-12-01
Received: 14 May 2019
Accepted: 12 December 2019
First Online: 27 December 2019
Ethics approval and consent to participate
: This research did not discriminate against gender, sexual orientation, visible minorities, people with disabilities, or religion beliefs. No animals or human subjects were used nor harmed in this study.
: Not applicable.
: The authors declare that they have no competing interests.