Rami Doukky et al. JCHF 2016;4:24-35 Absolute Standardized Differences in Baseline Covariates Between Sodium-Restricted and Unrestricted Patients Before and After Propensity Score Matching ACEi = angiotensin-converting enzyme inhibitor; ARB = angiotensin receptor blocker; HART = Heart Failure Adherence and Retention Trial; HFrEF = heart failure with reduced ejection fraction; NYHA = New York Heart Association; SF-36 = 36-Item Short Form Health Survey. Rami Doukky et al. JCHF 2016;4:24-35 American College of Cardiology Foundation