• Arch Pediatr Adolesc Med · May 2011

    Editorial Comment Comparative Study

    The hazards of drawing conclusions from before-and-after studies of system-level interventions: knowing may not be enough.

    • Michael D Cabana and Robert M Wachter.
    • Arch Pediatr Adolesc Med. 2011 May 1;165(5):472-3.

    no abstract available

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