1 From Department of Preventive Medicine, Feinberg School of Medicine Northwestern University, Chicago, IL (M.R.C., S.S.K.); and Division of Cardiology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL (S.S.K.). carnethon@northwestern.edu.
2 From Department of Preventive Medicine, Feinberg School of Medicine Northwestern University, Chicago, IL (M.R.C., S.S.K.); and Division of Cardiology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL (S.S.K.).