Integrating information from the lower levels of the hierarchy with individual patient records, systems represent the ideal source of evidence for clinical decision-making. An example of a system in this context would be a Clinical decision support system (CDSS).
Summaries are regularly updated clinical guidelines or textbooks that integrate evidence-based information about specific clinical problems
Clinical Practice Guidelines
Evidence-Based Texts & Point-of-Care Tools
Synopses of syntheses, summarize the information found in systematic reviews. By drawing conclusions from evidence at lower levels of the pyramid, these synopses often provide sufficient information to support clinical action.
Synopses of single studies summarize evidence from high-quality studies. The following evidence-based abstract journals are the best place to find this type of information:
Studies represent unique research conducted to answer specific clincial questions.
Controlled Vocabulary Databases - use subject headings for high-specificity searching
Grey Literature is any literature that has not been published through traditional means. It is often excluded from large databases and other mainstream sources.
For grey literature resources, see the Grey Literature tab on the Comprehensive Searching in the Health Sciences Guide
McMaster Guide: http://hsl.mcmaster.libguides.com/ebm