Once you have established your PICO, you need to translate it into a search string:
Learn more below.
Trouble identifying keywords? Try using one of these tools!
Once you have created a search strategy, this can then be applied to both Primary and Secondary databases.
Comprehensive indexes to research literature
Contain references to a wide range of original research (including clinical studies, RCTs etc )
Primary databases may be very specific in subject content, or they may be multidisciplinary.
Only contain references to articles that have been assessed and sometimes scored or appraised according to set criteria such as a hierarchy of evidence (eg systematic reviews etc)
Usually much smaller than primary databases.
Many secondary databases are available freely on the internet.