Funding for this research was provided by:
Naval Health Research Center (#W911QY-16-C-0089)
Received: 28 November 2018
Accepted: 17 October 2019
First Online: 12 November 2019
Ethics approval and consent to participate
: The study was overseen and approved by the Naval Health Research Center’s Institutional Review Board (Protocol 2000.0007) and the Office of Management and Budget (approval number 0720–0029). Written or electronic informed consent was obtained for all participants. This research has been conducted in compliance with all applicable federal regulations governing the protection of human subjects in research (Protocol NHRC.2015.0019).
: Not applicable.
: The authors declare that they have no competing interests.