No abstract available
MeSH terms
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Adrenergic beta-Antagonists / therapeutic use*
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Central America
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Chagas Cardiomyopathy / drug therapy*
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Clinical Trials as Topic / economics
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Humans
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Internationality
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Multicenter Studies as Topic
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Research Support as Topic / economics*
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Research Support as Topic / trends
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South America
Substances
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Adrenergic beta-Antagonists