1. University of Alabama at Birmingham, Birmingham, AL, USA;
2. Copenhagen Center for Arthritis Research and DANBIO, Center for Rheumatology and Spine Diseases, Glostrup, Denmark;
3. Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark;
4. Rheumatology Unit, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden;
5. Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden;
6. Crescendo Bioscience Inc., South San Francisco, CA, USA;
7. Myriad Genetics Inc., Salt Lake City, UT, USA;
8. Leiden University Medical Center, Leiden, Netherlands