Funding for this research was provided by:
National Heart, Lung, and Blood Institute (Intramural Research Program)
Received: 14 June 2020
Accepted: 25 October 2020
First Online: 10 November 2020
Ethics approval and consent to participate
: Samples collection was approved by the institutional review boards of the National Heart, Lung, and Blood Institute. Informed consent was obtained from each participant using writing informed consent in accordance with the Declaration of Helsinki and under Clinicaltrials.gov protocols.
: Not applicable.
: The authors declare that they have no competing interests.