From PubMed Central

Description: 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 citati on 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. For additional information, see the PubMed Overview.

Sources: More than 4,600 journals are indexed, plus selected monographs of congresses and symposia (1976-1981). Abstracts are included for about 67% of the records.

Holdings: 1950 to the present. Updated daily.

Print Counterparts: Index Medicus, [Biomedical Library Reference: Z6660 .I53i], 1879-1927. Quarterly Cumulative Index to Current Medical Literature, [Biomedical Library Reference: Z6660 .A5], 1916-1926. Quarterly Cumulative Index Medicus, [Biomedical Library Reference: Z6660 .I54], 1927-1956. Current List of Medical Literature, [Biomedical Library Reference: Z6660 .I545], 1941-1959. Cumulated Index Medicus, [Biomedical Library Reference: Z6660 .I55], 1960-present. Index to Dental Literature, [Dental Library: RK 51 .I533], 1988-present. International Nursing Index, [Biomedical Library Reference: Z6675 .N7 I5], 1966-1994.