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Lamb SE, Becker C, Gillespie LD, Smith JL, Finnegan S, Potter R, Pfeiffer K; Taxonomy Investigators.Lamb SE, et al.Trials. 2011 May 17;12:125. doi: 10.1186/1745-6215-12-125.Trials. 2011.PMID: 21586143Free PMC article.