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Evaluating complex interventions

BMJ 2000; 321 doi: (Published 16 September 2000) Cite this as: BMJ 2000;321:711
  1. Carnall Douglas (
  1. BMJ

    Doctors work in the real world so although in principle all medical decisions should be made on the basis of empirical evidence, some interventions—such as deciding whether to admit a patient to a stroke unit— are complex. This week a paper in the BMJ presents a model (p 694) with which researchers can clarify the …

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