1 Department of Medicine, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital and Harvard Medical School, Yawkey Center for Outpatient Care, Suite 4B, 55 Fruit Street, Boston, MA 02114, USA. Electronic address: emiloslavsky@mgh.harvard.edu.
2 Department of Medicine, Division of Rheumatology, Northwestern University, Feinberg School of Medicine, Northwestern University Hospital, Galter Pavilion, 675 North St Clair Street, Suite 1400, Chicago, IL 60611, USA. Electronic address: Anisha.dua@northwestern.edu.