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.
Awwad W, Steffen T, Roughley P, Haglund L, Ouellet J.Awwad W, et al. Among authors: steffen t.Evid Based Spine Care J. 2011 Aug;2(3):51-2. doi: 10.1055/s-0030-1267113.Evid Based Spine Care J. 2011.PMID: 23526897Free PMC article.
Parolin M, Gawri R, Mwale F, Steffen T, Roughley P, Antoniou J, Jarzem P, Haglund L, Ouellet J.Parolin M, et al. Among authors: steffen t.Evid Based Spine Care J. 2010 Aug;1(2):67-8. doi: 10.1055/s-0028-1100919.Evid Based Spine Care J. 2010.PMID: 23637672Free PMC article.
Haglund L, Moir J, Beckman L, Mulligan KR, Jim B, Ouellet JA, Roughley P, Steffen T.Haglund L, et al. Among authors: steffen t.Tissue Eng Part C Methods. 2011 Oct;17(10):1011-9. doi: 10.1089/ten.TEC.2011.0025. Epub 2011 Jul 19.Tissue Eng Part C Methods. 2011.PMID: 21663457