Survival Benefit of Aortic Valve Replacement in Patients With Severe Aortic Regurgitation and Pulmonary Hypertension

Recommendations for Quantitation of the Left Ventricle by Two-Dimensional Echocardiography

1989 • 8,119 citations

Propensity score methods for bias reduction in the comparison of a treatment to a non-randomized control group

1998 • 5,217 citations

The Natural History of Congestive Heart Failure: The Framingham Study

1971 • 3,350 citations

Propensity Scores in Cardiovascular Research

2007 • 444 citations

Comparison and reproducibility of visual echocardiographic and quantitative radionyclide left ventricular ejection fractions

1996 • 276 citations

Superiority of visual versus computerized echocardiographic estimation of radionuclide left ventricular ejection fraction

1989 • 263 citations

Planning and Analysis of Observational Studies.

1984 • 207 citations

Effect of Beta-Blocker Therapy on Survival in Patients With Severe Aortic Regurgitation

2009 • 70 citations

Pulmonary hypertension in aortic regurgitation: early surgical outcome.

1991 • 26 citations

Planning and Analysis of Observational Studies.

1984 • 25 citations

Severe pulmonary hypertension in advanced aortic valve disease.

1978 • 17 citations