@jepcastel

Confounding of subgroup analyses in randomized data.

, , , , and . Archives of internal medicine, 169 (16): 1532-4 (September 2009)5280<m:linebreak></m:linebreak>Comparacions múltiples; RCT; Confounding; Exemple.
DOI: 10.1001/archinternmed.2009.250

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