No abstract available
MeSH terms
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Adrenergic beta-Agonists / therapeutic use
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Anti-Infective Agents / therapeutic use
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Ascorbic Acid / therapeutic use
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Echinacea
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Histamine H1 Antagonists / therapeutic use
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Humans
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Nasal Decongestants / therapeutic use
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Phytotherapy
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Respiratory Tract Infections / drug therapy*
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Zinc / therapeutic use
Substances
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Adrenergic beta-Agonists
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Anti-Infective Agents
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Histamine H1 Antagonists
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Nasal Decongestants
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Zinc
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Ascorbic Acid