1. Essentia Health Duluth Clinic Duluth MN USA
2. MetroHealth Medical Center Cleveland OH USA
3. Division of Rheumatology Department of Medicine Mayo Clinic College of Medicine Rochester MN USA
4. Department of Health Sciences Research Mayo Clinic College of Medicine Rochester MN USA
5. Department of Dermatology Mayo Clinic College of Medicine Rochester MN USA
6. Department of Laboratory Medicine and Pathology Mayo Clinic College of Medicine Rochester MN USA
7. Section of Rheumatology, Allergy and Immunology Yale University School of Medicine New Haven CT USA