New information resources, such as evidence-based medicine (EBM) resources, have been developed so that clinicians can retrieve information quickly. The most recent information in EBM resources often lag 6 months to 1 year after original publication. In contrast, emergency information about new infectious diseases, such as severe acute respiratory syndrome (SARS), circulates quickly but in overly large quantities. If such emergency medical information is included in EBM resources, clinicians might find relevant information more easily. We investigated the reliability and freshness of information in EBM resources. As examples of EBM resources, we focused on The Cochrane Library, Clinical Evidence, and UpToDate. We searched these EBM resources for information on SARS, the West Nile fever and hormone replacement therapy. We found that for these topics, UpToDate included the most recent articles and is therefore a good source for emergency medical information. Medical librarians should understand the advantages and limitations of such EBM resources and be able to advise clinicians about their use.
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