Funding for this research was provided by:
National Heart, Lung, and Blood Institute (R01 HL098382, RO1 HL098382)
Received: 23 March 2019
Accepted: 8 May 2019
First Online: 17 May 2019
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board of the six University MESA study centers and all participants consented to participating in this study.
: All study participants consented to participating in this study, and having their results published as part of this study.
: The authors declare that they have no competing interests.