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Metabias: a challenge for comparative effectiveness research.

, and . Annals of internal medicine, 155 (1): 61-2 (July 2011)6245<m:linebreak></m:linebreak>Metaanàlisi; Meta-metaanàlisi; Bias; CER.
DOI: 10.7326/0003-4819-155-1-201107050-00010