Funding for this research was provided by:
National Institutes of Health (K23AI091692, K24AI065298)
Potts Family Foundation (n/a)
Received: 4 December 2018
Accepted: 8 April 2019
First Online: 30 April 2019
Ethics approval and consent to participate
: This study was approved by the Institutional Review Boards of Vanderbilt University Medical Center, Metro Public Health Department, and the Tennessee Department of Health. All participants provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
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