Research article

Antibodies to citrullinated proteins and differences in clinical progression of rheumatoid arthritis

Annette HM van der Helm-van Mil^*, Kirsten N Verpoort, Ferdinand C Breedveld, René EM Toes and Tom WJ Huizinga

Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands

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Arthritis Research & Therapy 2005, 7:R949-R958 doi:10.1186/ar1767

Published: 14 June 2005