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.
Sacks JJ, Luo YH, Helmick CG.Sacks JJ, et al. Among authors: helmick cg.Arthritis Care Res (Hoboken). 2010 Apr;62(4):460-4. doi: 10.1002/acr.20041.Arthritis Care Res (Hoboken). 2010.PMID: 20391499Free article.
Barbour KE, Helmick CG, Boring M, Qin J, Pan L, Hootman JM.Barbour KE, et al. Among authors: helmick cg.Arthritis Care Res (Hoboken). 2017 Mar;69(3):376-383. doi: 10.1002/acr.22958.Arthritis Care Res (Hoboken). 2017.PMID: 27332971Free PMC article.
Murphy LB, Brady TJ, Boring MA, Theis KA, Barbour KE, Qin J, Helmick CG.Murphy LB, et al. Among authors: helmick cg.Arthritis Care Res (Hoboken). 2017 Sep;69(9):1322-1330. doi: 10.1002/acr.23129. Epub 2017 Aug 8.Arthritis Care Res (Hoboken). 2017.PMID: 27748081