Text and Data Mining valid from 2019-07-11
Received: 26 December 2018
Accepted: 24 June 2019
First Online: 11 July 2019
Ethics approval and consent to participate
: As this manuscript is a review and only involved an overview of existing literature, no ethics approval was needed. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. For this type of study, formal consent is not required.
: As this manuscript is a review and only involved an overview of existing literature, there were no subjects and, consequently, no need for consent for publication.
: The authors, Andrew Hasebroock, Joseph Brinkman, Lukas Foster, and Joseph Bowens, declare that they have no competing interests.