Key, Kent D.
Article History
First Online: 16 May 2020
Compliance with Ethical Standards
:
: The author declares that there is no conflict of interest.
: 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 1864 Helsinki Declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in this study.