1. Leiden University Medical Center Leiden The Netherlands
2. Leiden University Medical Center, Leiden, The Netherlands, and Technical University of Denmark Lyngby Denmark
3. Nagasaki University Graduate School of Biomedical Sciences Nagasaki Japan
4. University of Manitoba Winnipeg Manitoba Canada
5. Amsterdam Rheumatology and Immunology Center and Amsterdam Academic Medical Center Amsterdam The Netherlands
6. Umeå University Umeå Sweden