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.
Shah F, Rapini RP, Arnett FC, Warner NB, Smith CA.Shah F, et al. Among authors: arnett fc.Arthritis Rheum. 1990 Nov;33(11):1682-7. doi: 10.1002/art.1780331111.Arthritis Rheum. 1990.PMID: 2242064