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Abstract
Mesh: See more » Clinical Trials as Topic/methodsCoronary Disease/drug therapyData CollectionHumansResearch DesignStatistics as TopicTime FactorsUnited States
Year: 1983 PMID: 6675896 DOI: 10.1016/0197-2456(83)90029-6
Source DB: PubMed Journal: Control Clin Trials ISSN: 0197-2456