1 Division of Cardiology, Department of Medicine Johns Hopkins University School of Medicine Baltimore MD.
2 Digital Health Innovation Laboratory, Ciccarone Center for the Prevention of Cardiovascular Disease, Division of Cardiology, Department of Medicine Johns Hopkins University School of Medicine Baltimore MD.
3 Center for Mobile Technologies to Achieve Equity in Cardiovascular Health (mTECH Center), an AHA Health Technology & Innovation SFRN Center Baltimore MD.
4 School of Nursing Johns Hopkins University Baltimore MD.
5 Welch Center for Prevention, Epidemiology, and Clinical Research Johns Hopkins Bloomberg School of Public Health Baltimore MD.