Funding for this research was provided by:
National Heart, Lung and Blood Institute (R01HL121230)
National Institute of Aging (R03AG060619)
Received: 4 May 2019
Accepted: 12 August 2019
First Online: 23 August 2019
Ethics approval and consent to participate
: Study protocols were approved by the Institutional Review Board of the Tulane University Health Sciences Center and written informed consent was obtained from all study participants.
: All authors have reviewed the final version of the manuscript and approve of its publication.
: The authors declare that they have no competing interests.