Funding for this research was provided by:
Emory University Research Council
First Online: 1 August 2019
Compliance with Ethical Standards
: The authors declare that they have no conflict of interest.
: All procedures performed in the study 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. The Emory University IRB provided approval for this study.
: Informed consent was obtained from all individual participants included in the study.