No abstract available
MeSH terms
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Case-Control Studies
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Chronic Disease
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Humans
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Immunologic Factors / administration & dosage
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Immunologic Factors / adverse effects
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Immunologic Factors / therapeutic use
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Nasal Polyps / drug therapy*
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Rhinitis / drug therapy*
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Rhinitis / pathology*
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Sinusitis / drug therapy*
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Sinusitis / pathology*
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Verapamil / administration & dosage
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Verapamil / adverse effects
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Verapamil / therapeutic use*
Substances
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Immunologic Factors
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Verapamil