Due to the changes in security policies introduced by many information providers you may experience security or privacy error when accessing some of the resources (e.g., ClinicalKey, DynaMed, etc.). Please see below how to proceed in Chrome, Safari and Firefox browsers in order to access these resources. It is safe to perform these steps and they need to be done once per resource. The error will not show up in the subsequent sessions unless browser's cache is cleared. We apologize for any inconvenience this may cause.