Funding for this research was provided by:
U.S. Department of Defense (W81XWH-12-1-0597)
Received: 29 December 2017
Accepted: 15 March 2018
First Online: 27 March 2018
Ethics approval and consent to participate
: 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 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The study protocol was approved by the University Research Ethics Board, and a signed written informed consent was obtained from all individual participants included in the study.
: Not applicable.
: The authors declare that they have no competing interests.
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