It is best practice to search a minimum of four databases in a systematic review, in addition to sources for grey literature and clinical trials. Databases in the Primary box will apply to any health or medical topic. Databases in the Secondary box will apply based on specific topics. Please contact your librarian for help choosing databases; you can also use the Search Smart tool
Databases useful for any health or medical topic.
Be sure to also check Cochrane's "Trials" tab.
Databases which may be useful depending on the topic.