1. Veterans Affairs Boston Healthcare System, Brigham and Women's Hospital, and Harvard T. H. Chan School of Public Health Boston Massachusetts
2. University of Massachusetts Amherst
3. Brigham and Women's Hospital Boston Massachusetts
4. University of the West Indies Cave Hill campus Barbados
5. Allegheny General Hospital Pittsburgh Pennsylvania
6. Hanyang University Hospital for Rheumatic Diseases, Hanyang University Institute for Rheumatology Research, and Hanyang Institute of Bioscience and Biotechnology Seoul Korea
7. The Chris Hani Baragwanath Academic Hospital, Johannesburg, South Africa, and Life Roseacres Hospital, Primrose Germiston South Africa
8. University of Kentucky Medical Center Lexington