ex: "diabetes mellitus"
ex: nurs*
To access this database, scroll down to the databases button and click on it.
Then click on the letter C and scroll down and click on CINAHL.
Databases are set by default to the advanced search, which will have several boxes for terms/keywords/subject headings
The top box is "weighted" which means that the term input into this box is the "most relevant" (your primary subject)
For Open Access (FREE) journals explore DOAJ's subject areas.