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.
Mostardi RA, Noe DA, Kovacik MW, Porterfield JA.Mostardi RA, et al. Among authors: porterfield ja.Spine (Phila Pa 1976). 1992 Feb;17(2):189-93. doi: 10.1097/00007632-199202000-00012.Spine (Phila Pa 1976). 1992.PMID: 1532461
Noe DA, Mostardi RA, Jackson ME, Porterfield JA, Askew MJ.Noe DA, et al. Among authors: porterfield ja.Spine (Phila Pa 1976). 1992 Feb;17(2):225-9. doi: 10.1097/00007632-199202000-00018.Spine (Phila Pa 1976). 1992.PMID: 1532462
Porterfield JA, Mostardi RA, King S, Ariki P, Moats E, Noe D.Porterfield JA, et al.Spine (Phila Pa 1976). 1987 Sep;12(7):683-7. doi: 10.1097/00007632-198709000-00008.Spine (Phila Pa 1976). 1987.PMID: 3686220