To the Editor: Coiera et al1 should be congratulated for highlighting the excessive communication workloads of emergency department clinical staff, and the potential for these to be a source of errors and adverse events. However, their article fails to discuss the confounding variables, making it difficult to assess the validity of the communication strategies the authors propose to remedy the problem, or the applicability of their findings to other institutions.
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- Faculty of Medicine, University of New South Wales, NSW.