A broad database of periodicals, Academic Search Complete covers medical journals along with many others, including journals in the social sciences, humanities, education, computer sciences, and ethnic studies, for example.
Academic Search Complete provides abstracts for more than 9,300 scholarly and popular periodicals, with full-text for more than 5,300 of these.
PubMed is the National Library of Medicine's (NLM) freely accessible interface to the MEDLINE bibliographic database, covering the fields of medicine, nursing, dentistry, veterinary medicine, biomedical engineering, the health care system, and the basic biomedical sciences.
MEDLINE contains bibliographic citations and author abstracts from biomedical journals published in the United States and other countries. The database contains citations dating back to the mid-1950's. Journal articles are indexed for MEDLINE using NLM's subject heading system, MeSH (Medical Subject Headings).
Web of Science is a database that includes access to a range of science resources, such as Medline, a bibliographic database from the U.S. National Library of Medicine (NLM) that covers biomedicine and life sciences, Science Citation Index Expanded (SCI): A multidisciplinary database that indexes over 5,700 major journals across 164 scientific disciplines, and Social Science Citation Index (SSCI): A database that can be searched for records from 1956 to present, and Web of Science Core Collection: Includes over 21,000 peer-reviewed journals, over 226,000 conferences, and over 126,000 books.