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.
van Leeuwen MA, van Rijswijk MH, Westra J, de Jong HJ, Marrink J.van Leeuwen MA, et al. Among authors: westra j.Ned Tijdschr Geneeskd. 1986 Aug 2;130(31):1391-5.Ned Tijdschr Geneeskd. 1986.PMID: 3528871Dutch.No abstract available.
Posthumus MD, Limburg PC, Westra J, Cats HA, Stewart RE, van Leeuwen MA, van Rijswijk MH.Posthumus MD, et al. Among authors: westra j.Rheumatology (Oxford). 1999 Nov;38(11):1081-7. doi: 10.1093/rheumatology/38.11.1081.Rheumatology (Oxford). 1999.PMID: 10556259
Westra J, Doornbos-van der Meer B, de Boer P, van Leeuwen MA, van Rijswijk MH, Limburg PC.Westra J, et al.Arthritis Res Ther. 2004;6(4):R384-92. doi: 10.1186/ar1204. Epub 2004 Jun 21.Arthritis Res Ther. 2004.PMID: 15225374Free PMC article.