CINAHL's search limiters restrict the number of results so they focus on specific patient populations and literature types.
CINAHL's limiters are listed under the search bar and the subtitle "Limit Your Results". The most important ones limit the literature to date published, subject, and patient populations.
Date Published retrieves articles that were published during the years you specify. It especially helps when you want the most recent literature available.
Journal Subset retrieves articles from a specific type of journal based on where it was published, the kind of medicine it covers, or the type of research done for the article.
Special Interest retrieves articles from specified fields of medicine.
Sex and Age Groups limit the research to patient populations according to their sex and age.
Do not use Linked Full Text Limit. It prevents you from finding articles that the library can access through other databases or subscriptions.
Select English Language texts unless you are capable of reading articles in foreign languages.