bibliographic entry 11623213 [be/11623213]
https://w3id.org/oc/corpus/be/11623213
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Shrier I, Boivin JF, Steele RJ, et al. Should meta-analyses of interventions include observational studies in addition to randomized controlled trials? A critical examination of underlying principles. Am J Epidemiol 2007; 166: 1203-9. PMID: 17712019
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