Funding for this research was provided by:
National Heart, Lung, and Blood Institute (1P20HL101408)
Swiss Society of Hypertension Grant 2013
National Institutes of Health (2T32HL094301-06)
American Heart Association (12FTF12060588)
Received: 6 January 2017
Accepted: 27 November 2017
First Online: 28 December 2017
Ethics approval and consent to participate
: Institutional review boards (IRB) at each participating site (all sites’s IRB/ethics boards listed in supplemental 1 approved the study protocol and all participants provided written informed consent or parental consent/ youth assent.
: Not applicable
: The authors declare that they have no competing interests.
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