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.
Boonen A, van der Heijde D, Severens JL, Boendermaker A, Landewé R, Braun J, Brandt J, Sieper J, van der Linden S.Boonen A, et al. Among authors: sieper j.Ann Rheum Dis. 2006 Feb;65(2):201-8. doi: 10.1136/ard.2004.032565. Epub 2005 Jul 13.Ann Rheum Dis. 2006.PMID: 16014677Free PMC article.
Sieper J, Braun J.Sieper J, et al.Dtsch Med Wochenschr. 1993 May 14;118(19):712-8. doi: 10.1055/s-2008-1059383.Dtsch Med Wochenschr. 1993.PMID: 8500415Review.German.No abstract available.