An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Clapper MP, Wolf SL.Clapper MP, et al. Among authors: wolf sl.Phys Ther. 1988 Feb;68(2):214-8. doi: 10.1093/ptj/68.2.214.Phys Ther. 1988.PMID: 3340659Clinical Trial.
English AW, Wolf SL, Segal RL.English AW, et al. Among authors: wolf sl.Phys Ther. 1993 Dec;73(12):857-67. doi: 10.1093/ptj/73.12.857.Phys Ther. 1993.PMID: 8248294Review.