PubMed comprises more than 28 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.
How to use PubMed
Use the Libkey Nomad browser plugin for Google Chrome to get full-text PDF and journal links in your PubMed search results: Download LibKey Nomad at the Chrome Web Store