A literature review is intended to provide a summary of research on a topic. There are different methods for conducting a literature review, two of which are described below. 

Systematic Reviews follow specific protocols with the aim of providing a comprehensive picture of current research and minimizing bias. These are usually conducted by a team of researchers and take many months to produce.

Integrative Reviews aim to provide conceptual or narrative overview of findings on a specific topic. They are not as rigorous as systematic reviews, but should still incorporate clear and reproducible search methodologies. 

The literature search process of a review should be clearly documented in the methods section and include:

• search terms (including keywords and formal subject headings)
• databases used
• additional search strategies (such as citation chasing)
• inclusion and exclusion criteria for determining relevant sources