Library Guides: Researching in Physical Therapy: Finding Medical Materials Online

PubMed has more than 34 million references and includes MEDLINE and other types of citations (i.e. "Ahead of Print", Citations pre-1966, citations to author manuscripts published by the NIH, journals/manuscripts deposited in PubMedCentral, citations to books available on the NCBI Bookshelf)
Medline contains more than 29 million references and is the National Library of Medicine's journal citation database.
Searching MEDLINE through the FPU subscription gives you access to full-text and links to other FPU databases.
PubMedCentral is a free archive for full-text biomedical and lifescience journal articles

PUBMed
PubMed comprises more than 26 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.

PLoS - Public Library of Science
Open Access Science Journals - titles include: PLoS One, PLoS Biology, PLoS Genetics, PLoS Medicine and others.