PubMed (MCPHS link) PubMed includes Medline. You do not need to search both PubMed and Medline (via Ovid).
Provided by the National Library of Medicine, this free database includes access to Medline, citations to other life sciences journals not indexed in Medline (primarily general sciences and chemistry), and links to the molecular biology databases maintained by National Center for Biotechnology Information (NCBI). Read free articles. Use Get Full Text (MCPHS) for articles that are not free.