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Literature review

A literature review can be defined as a synthesis and analysis of scientific material on a specific subject (Garrard, 2014).

This method tries to identify what has previously been written about a certain subject, which makes it possible to sum up and add to previous work, to avoid double work and to identify gaps in the research field.

This covers a very varying degree of comprehensiveness and there is thus a risk of bias and that certain important aspects of the literature have been missed (Grant & Booth, 2009).

The method does not necessarily use standards for search protocols and reporting of searches. The term ”literature review” is by some used synonymously with the term Narrative reviews (Grant & Booth, 2009)

 Literature review

Selected sources and databases for searching.


Searches can be more or less comprehensive (Grant & Booth, 2009).


Often narrative (Grant & Booth, 2009).


Garrard, J. (2014). Health sciences literature review made easy: the matrix method e (4. udg.). Burlington: Jones & Bartlett Learning.

Grant, M. J., & Booth, A. (2009). A typology of reviews: An analysis of 14 review types and associated methodologies. Health Information and Libraries Journal, 26(2), 91–108. https://doi.org/10.1111/j.1471-1842.2009.00848.x