Text and Data Mining valid from 2019-08-23
Received: 26 April 2017
Accepted: 6 August 2019
First Online: 23 August 2019
Ethics approval and consent to participate
: There was no institutional requirement for prior authorization by an ethics committee. This was due to the nature of the review, which did not involve human subjects, human material, or human data. Animal/plant subject were not similarly utilized.
: Human subjects were not employed during this activity.
: The authors declare that they have no competing interests.