New WHO ACPA standard enables standardisation among anti-CCP2 assays, but not other ACPA assays using different antigens

Affiliations

• ¹ Department of Laboratory Medicine, OLV Hospital Aast, Aalst, Belgium [email protected].
• ² Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium.
• ³ Reinier Haga Medical Diagnostic Center, Delft, The Netherlands.
• ⁴ Medicines and Healthcare Regulatory Agency (MHRA), Hertfordshire, UK.
• ⁵ Laboratory of Clinical Immunology, Maastricht University Medical Center, Maastricht, The Netherlands.
• ⁶ Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria.
• ⁷ Department of Rheumatology, OLV Hospital Aalst, Aalst, Belgium.
• ⁸ Department of Rheumatology, KU Leuven University Hospitals Leuven, Leuven, Belgium.
• ⁹ Ludwig Boltzmann Institute for Arthritis and Rehabilitation, Vienna, Austria.
• ¹⁰ Department of Laboratory Medicine, University Hospitals Leuven, Leuven, Belgium.