ß2 Adrenoceptor gene single nucleotide polymorphisms are associated with rheumatoid arthritis in northern Sweden
B-Y Xu, L Ärlehag, S-B Rantapää-Dahlquist, and A K Lefvert
NOTICE OF DUPLICATE PUBLICATION
We wish to draw readers' attention to significant overlap between this article and one published in the December issue of the Scandinavian Journal of Rheumatology (2004;33:395-9).
The article published in Scand J Rheumatol is an earlier version which differs in certain details from that in Ann Rheum Dis. The "duplicate" submission arose from a misunderstanding among the authors.
Kristian Stengaard-Pedersen
editor Scandinavian Journal of Rheumatology
Leo van de Putte
editor Annals of the Rheumatic Diseases