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Abstract
Mesh: See more » Antitussive Agents/therapeutic useCough/drug therapyCough/etiologyHumansSputum/analysis
Substances: See more » Antitussive Agents
Year: 1977 PMID: 861643 PMCID: PMC1606881
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447