Jeffrey A. Sparks, MD, MMSc 
Division of Rheumatology, Inflammation, and Immunity, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, 60 Fenwood Road, #6016U, Boston, MA 02116, USA
Michael H. Weisman, MD 
Division of Rheumatology and Immunology, Department of Medicine, Stanford University School of Medicine, 300 Pasteur Drive, Palo Alto, CA 94304, USA
Anisha B. Dua, MD, MPH 
Division of Rheumatology, Department of Medicine, Northwestern University, Feinberg School of Medicine, Galter Pavilion, 675 North St Clair Street, Suite 14-100, Chicago, IL 60611, USA