Funding for this research was provided by:
U.S. Army Materiel Command (0704400)
First Online: 16 April 2019
Compliance with Ethical Standards
: Melissa A. Alderfer, Beth A. Logan, Stephen DiDonato, Leela Jackson, Marie J. Hayes, and Sandra T. Sigmon declare that they have no conflicts of interest.
: All procedures performed in this study involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This article does not contain any studies with animals performed by any of the authors.
: Informed consent or assent was obtained from all individual participants included in the study.