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Heart Failure
Stroke Volume
Ventricular Dysfunction, Left
Adrenergic beta-Antagonists
Carbazoles
Propanolamines
Isosorbide Dinitrate
Hydralazine
Drug Combinations
Vasodilator Agents
Registries
Treatment Outcome
Survival Rate
Research Design
Severity of Illness Index
United States
African Americans
Community Health Services
Double-Blind Method
Clinical Trials as Topic
Co-Publications
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6
5
3
2
1
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