The ISI Citation Indexes include the Science Citation Index, the Social Science Citation Index, and the Arts & Humanities Citation Index.
Search for specific articles by subject, author, journal, and/or author address, as well as for articles that cite a known author or work.

The premier database for bibliographic coverage of biomedical literature. MEDLINE encompasses information from Index Medicus, Index to Dental Literature, and International Nursing Index, as well as other sources of coverage in the areas of allied health, biological and physical sciences, humanities and information science as they relate to medicine and health care, communication disorders, population biology, and reproductive biology. Resources in all languages are represented.

PubMed is the public access version to Medline, the premier database for biomedical literature. PubMedPlus is an enhanced version with links to full-text journals that the Penn Library subscribes to. Once the "Log-in" is completed, any full-text articles to which Penn Libraries subscribe will become available within the PubMed system by clicking on the Penn Text icon. The MEDLINE database is widely recognized as the premier source for bibliographic coverage of biomedical literature. The PubMed version of MEDLINE includes the PREMEDLINE database, which provides very current basic citation information and abstracts before the full records are prepared and added to MEDLINE. New records are added to PREMEDLINE daily. In addition, for participating journals that are indexed selectively for MEDLINE, PubMed includes all articles from that journal, not just those that are included in MEDLINE. PubMed is also the literature component of the Entrez retrieval system for molecular biology information. Holdings: 1950 to the present. Updated daily.

The premier database for bibliographic coverage of biomedical literature. MEDLINE encompasses information from Index Medicus, Index to Dental Literature, and International Nursing Index, as well as other sources of coverage in the areas of allied health, biological and physical sciences, humanities and information science as they relate to medicine and health care, communication disorders, population biology, and reproductive biology. Resources in all languages are represented.