Funding for this research was provided by:
U.S. Department of Veterans Affairs (B7878W)
National Heart, Lung, and Blood Institute (5T32HL139430)
national institute of health (R01 HD051844)
Received: 7 March 2019
Accepted: 25 November 2020
First Online: 8 December 2020
Ethics approval and consent to participate
: The study was approved by the Intuitional Review Board of the University of Texas Medical Branch and Baylor College of Medicine (IRB # 06–158). All participants agreed to participate in the study and signed the approved consent form.
: All authors read and approved the final manuscript for publication.
: No conflicts of interest were reported by the authors or by any individuals in control of the content of this article.