Funding for this research was provided by:
National Institutes of Health (5T32HL105346-09)
National Institute on Aging (1R01AG050607)
National Science Foundation, United Arab Emirates (DNRF135)
Received: 5 September 2019
Accepted: 28 May 2020
First Online: 10 June 2020
Ethics approval and consent to participate
: All research activities involving human subjects were performed in accordance with the Declaration of Helsinki. Study-related procedures were approved by the Institutional Review Board of the University of Alabama at Birmingham, and written informed consent was obtained from all participants.
: Not applicable.
: The authors have no relevant conflicts of interest to disclose.