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.
de Groot K, Reinhold-Keller E, Tatsis E, Paulsen J, Heller M, Nölle B, Gross WL.de Groot K, et al.Arthritis Rheum. 1996 Dec;39(12):2052-61. doi: 10.1002/art.1780391215.Arthritis Rheum. 1996.PMID: 8961911
Reinhold-Keller E, Fink CO, Herlyn K, Gross WL, De Groot K.Reinhold-Keller E, et al. Among authors: de groot k.Arthritis Rheum. 2002 Jun 15;47(3):326-32. doi: 10.1002/art.10459.Arthritis Rheum. 2002.PMID: 12115164Free article.Clinical Trial.
Reinhold-Keller E, De Groot K, Rudert H, Nölle B, Heller M, Gross WL.Reinhold-Keller E, et al. Among authors: de groot k.QJM. 1996 Jan;89(1):15-23. doi: 10.1093/oxfordjournals.qjmed.a030133.QJM. 1996.PMID: 8730339Clinical Trial.
de Groot K, Mühler M, Reinhold-Keller E, Paulsen J, Gross WL.de Groot K, et al.J Rheumatol. 1998 Mar;25(3):492-5.J Rheumatol. 1998.PMID: 9517769Clinical Trial.
Reinhold-Keller E, Beuge N, Latza U, de Groot K, Rudert H, Nölle B, Heller M, Gross WL.Reinhold-Keller E, et al. Among authors: de groot k.Arthritis Rheum. 2000 May;43(5):1021-32. doi: 10.1002/1529-0131(200005)43:5<1021::AID-ANR10>3.0.CO;2-J.Arthritis Rheum. 2000.PMID: 10817555Free article.
Reinhold-Keller E, de Groot K, Holl-Ulrich K, Arlt AC, Heller M, Feller AC, Gross WL.Reinhold-Keller E, et al. Among authors: de groot k.Clin Exp Rheumatol. 2001 Sep-Oct;19(5):541-9.Clin Exp Rheumatol. 2001.PMID: 11579713
de Groot K, Reinhold-Keller E.de Groot K, et al.Z Rheumatol. 2009 Feb;68(1):49-63; quiz 64. doi: 10.1007/s00393-008-0425-z.Z Rheumatol. 2009.PMID: 19184066Review.German.