Received: 2 August 2016
Accepted: 14 January 2018
First Online: 19 January 2018
Ethics approval and consent to participate
: This study did not involve human subjects, thus no consent was obtained. This study was granted exemption from the Institutional Review Board at Kent State University (IRB Number 16-217) because the study involved minimal risk to human subjects. Only publically available, existing data was used in the data analysis.
: Not applicable. This manuscript does not include images, videos, or details relating to individuals.
: The authors do not have competing interests to report.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.