• Arch. Intern. Med. · Sep 2009

    Confounding of subgroup analyses in randomized data.

    • Rolf H H Groenwold, A Rogier T Donders, Geert J M G van der Heijden, Arno W Hoes, and Maroeska M Rovers.
    • University Medical Center Utrecht, Julius Center for Health Sciences and Primary Care, PO Box 85500, 3508 GA, Utrecht, The Netherlands. r.h.h.groenwold@umcutrecht.nl
    • Arch. Intern. Med. 2009 Sep 14;169(16):1532-4.

    no abstract available

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