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9. Should meta-analyses of interventions include observational studies in addition to randomized controlled trials? A critical examination of underlying principles. Shrier I; Boivin JF; Steele RJ; Platt RW; Furlan A; Kakuma R; Brophy J; Rossignol M Am J Epidemiol; 2007 Nov; 166(10):1203-9. PubMed ID: 17712019 [TBL] [Abstract][Full Text] [Related]
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