No abstract available
MeSH terms
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Adrenergic beta-Antagonists / therapeutic use*
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Angiotensin-Converting Enzyme Inhibitors / therapeutic use*
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Animals
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Humans
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Hydroxymethylglutaryl-CoA Reductase Inhibitors / therapeutic use*
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Incidence
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Pneumonia / drug therapy
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Pneumonia / epidemiology*
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Pulmonary Disease, Chronic Obstructive / drug therapy
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Pulmonary Disease, Chronic Obstructive / epidemiology*
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Randomized Controlled Trials as Topic*
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Survival Rate / trends
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United States / epidemiology
Substances
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Adrenergic beta-Antagonists
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Angiotensin-Converting Enzyme Inhibitors
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Hydroxymethylglutaryl-CoA Reductase Inhibitors