Disease progression in systemic sclerosis. (6th January 2021) - van Leeuwen, Nina M; Liem, Sophie I E; Maurits, Marc P; Ninaber, Maarten; Marsan, Nina Ajmone; Allaart, Cornelia F; Huizinga, Tom W J; Knevel, Rachel; de Vries-Bouwstra, Jeska K