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Abstract
Entities: Species
Mesh: See more » Controlled Clinical Trials as TopicHumansPatientsTerminology as Topic
Year: 1999 PMID: 10213744 PMCID: PMC1115535 DOI: 10.1136/bmj.318.7191.1141a
Source DB: PubMed Journal: BMJ ISSN: 0959-8138