Funding for this research was provided by:
National Institutes of Health (R01 HL127113, R01 HL142718, P2CHD086843,, P01 AG036695, K99 HL136701)
U.S. Department of Defense
U.S. Department of Veterans Affairs
Received: 13 December 2017
Accepted: 5 April 2019
First Online: 7 May 2019
: The authors declare no competing interests. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health, Department of Defense, or the Department of Veteran Affairs.