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Abstract
Entities: Chemical
Mesh: See more » Animal FeedAnimalsChickensLegislation, DrugPenicillin ResistancePenicillinsUnited Kingdom
Substances: See more » Penicillins
Year: 1969 PMID: 5389731 PMCID: PMC1630146 DOI: 10.1136/bmj.4.5685.741-a
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447