Funding for this research was provided by:
U.S. Environmental Protection Agency
Received: 28 May 2020
Accepted: 5 November 2020
First Online: 16 November 2020
Ethics approval and consent to participate
: The study protocol and consent forms were approved by the University of North Carolina at Chapel Hill Institutional Review Board and the US Environmental Protection Agency Human Subjects Research Review Office. The study has been registered as a clinical trial (ExternalRef removed # NCT03232086).
: Not applicable.
: The authors declare that they have no competing interests.