To ensure that you have comprehensively searched for and found the relevant literature, you must search in more than one database. You will find overlapping literature across databases, however, you will also find unique literature that may be pivotal to your topic.
There is no perfect answer to this question, but here are a few things to consider:
The Research Medical Library has categorized our available databases by subject. These databases are accessible for all MD Anderson employees. Please note that the availability of these databases and the full-text literature is depending on your individual institutional subscriptions.
|Database||Scope of Database||Searching Skill Level||Use for|
|PubMed||Premiere biomedical database; includes MEDLINE, PubMed Central, and NCI Bookshelf ( over 30 million citations and abstracts of biomedical literature)||Basic||Searching for keywords or phrases|
|Scopus||Science, technology, medicine, social science, and arts and humanities (over 77.8 million records)||Basic to Intermediary||Searching for keywords or phrases|
|Web of Science (Core Collection)||Biomedical sciences, natural sciences, engineering, social sciences, arts & humanities (Over 78 million records)||Basic to Intermediary||Searching for keywords or phrases (no subject headings)|
|CINAHL - Ebsco||Nursing and allied health literature (over 6 million records)||Intermediary to Advanced||Searching for keywords or phrases (can include subject headings and some field tags)|
|MEDLINE - Ovid||Biomedical and life sciences literature (over 23 million records)||Advanced||Searching specific fields with MeSH terms, keywords, and phrases|
|Embase - Ovid||Biomedical, pharmacological and medical devices literature (over 30 million records)||Advanced||Searching specific fields with Emtree terms, keywords, and phrases|
Beyond database searching, you may need to consider searching for grey literature. Grey literature refers to anything that is unpublished or not formally published.
Ask a medical librarian for assistance. They are experts in database searching. Click here to request assistance with your literature search. You can also consult with a mentor who is experienced in literature searching and publishing.