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.
Clay CA, Perera S, Wagner JM, Miller ME, Nelson JB, Greenspan SL.Clay CA, et al. Among authors: perera s.Phys Ther. 2007 Oct;87(10):1325-33. doi: 10.2522/ptj.20060302. Epub 2007 Aug 7.Phys Ther. 2007.PMID: 17684084Clinical Trial.
Levy ME, Perera S, van Londen GJ, Nelson JB, Clay CA, Greenspan SL.Levy ME, et al. Among authors: perera s.Urology. 2008 Apr;71(4):735-9. doi: 10.1016/j.urology.2007.09.018. Epub 2008 Feb 15.Urology. 2008.PMID: 18279933Clinical Trial.
Velez NF, Zhang A, Stone B, Perera S, Miller M, Greenspan SL.Velez NF, et al. Among authors: perera s.Osteoporos Int. 2008 Oct;19(10):1457-64. doi: 10.1007/s00198-008-0590-6. Epub 2008 Mar 20.Osteoporos Int. 2008.PMID: 18351426Free PMC article.