Are there differences in online resources for answering primary care questions?

Abstract

This study searched two different online knowledge sources in order to evaluate their content coverage. UpToDate was selected as the subscription resource and the National Guidelines Clearinghouse was selected as the publicly available resource. Using the Clinical Questions Collection, it was determined that UpToDate covered 10.4% more content although neither resources provides complete coverage. Current practice guidelines address at most two-thirds of clinical questions.