PubMed is the free version of MEDLINE made available by the National Library of Medicine. It contains articles references form nearly 6,000 health science journals, including those in physical therapy, and some free full-text articles.
For a quick search, simply enter terms in the search box.
Click on Advanced under the search box to have more control over the search.
The best way to search PubMed is by using the MeSH Databse (consisting of MeSH, or Medical Subject Headings - see Explore menu at bottom of the page).
Using Advanced search: