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.
Tak PP, Rigby W, Rubbert-Roth A, Peterfy C, van Vollenhoven RF, Stohl W, Healy E, Hessey E, Reynard M, Shaw T.Tak PP, et al. Among authors: peterfy c.Ann Rheum Dis. 2012 Mar;71(3):351-7. doi: 10.1136/annrheumdis-2011-200170. Epub 2011 Oct 19.Ann Rheum Dis. 2012.PMID: 22012969Free PMC article.Clinical Trial.