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Nursing: Evidence Based Practice Resources

What is Medline

Medline is an online database of biomedical journal citations created by U.S. National Library of Medicine.  Approximately 5400 journals published in the US and more than 80 other countries are currently indexed. (CINAHL currently includes approx 700 journals). MEDLINE records are indexed with NLM's controlled vocabulary, the Medical Subject Headings (MESH). There is some overlap with CINAHL but each has its own unique content.

UVic Libraries has MEDLINE from two different providers - Ebscohost and OVID.

Inputting the Search

Use MESH headings.  Note that MESH and CINAHL subject headings are different.

1. Go to Medline (OVID)

2. Note that Map term to Subject Heading is checked

3. Search Results - 76

Strategy 1. Refine your search by publication type

Choose additional limits and choose publication types:

case reports, clinical trial,all or

Brings the results down to 33


Strategy 2. Use subject headings for research methodologies.

Use appropriate MESH subject headings for various research methodologies and explode. Result =29

A. Use Cohort studies, Case reports, case control studies and RCTs.


B. Use subject headings for meta-analysis and systematic reviews. Medline does NOT have a subject heading for systematic review.  It does have the subject heading Meta analysis.

Strategy 3. Refine using clinical queries.

Refine your search using clinical queries

Choose additional limits from your search and then go to clinical queries.  Choose appropriate query type. Choose more than one by pressing the control key.


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