Article History
First Online: 18 February 2019
Compliance with Ethical Standards
:
: This research was not supported by any grant from public, commercial, or not-for-profit funding agencies. None of the authors of the manuscript discloses any interest which might be interpreted as influencing the research or compromising ethical standards. The findings, conclusions, and opinions in this article are those of the authors and do not represent the official position of The University of Oklahoma Health Sciences Center, The University of Oklahoma, or The University of Tulsa.
: This article reports an analysis of published literature. No assessment of human participants was conducted. Thus, Institutional Review Board approval and informed consent were not required for this project.