*5.2.3 Unfiltered resources*

Unfiltered resources are primary studies that have not yet been synthesized. Therefore, they are challenging to read, interpret, and apply in practice. Examples of unfiltered resources are CINAHL, EMBASE, Web of Science, PsycINFO, and PubMed. If a current, well-designed systematic review is not available, proceed to a primary study to answer your question. The best type of primary studies varies depending on the type of clinical question. **Table 1** lists the study types suitable for the main types of clinical questions.
