Utrecht University - University Medical Center (Utrecht), University Hospital Careggi, APHP Hospital Cochin, University of Salerno, Royal Free Hospital, University of Zurich, University of California, Los Angeles (UCLA), Università Vita-Salute San Raffaele - San Raffaele Hospital, University of Michigan at Ann Arbor - Michigan Scleroderma Program, Nippon Medical School - Department of Allergy and Rheumatology, Università Vita-Salute San Raffaele - San Raffaele Hospital, University of Melbourne - Department of Medicine, Utrecht University - University Medical Center (Utrecht), Utrecht University - University Medical Center (Utrecht) and NHS Foundation Trust