Bohelay, Gérôme, Sophie Blaise, Pierre Levy, Antoine Claeys, Nathalie Baudot, Jean-Francois Cuny, Hervé Maillard, et al. 2018. “Lower-Limb Ulcers in Systemic Sclerosis: A Multicentre Retrospective Case-Control Study”. Acta Dermato-Venereologica 98 (7):677-82. https://doi.org/10.2340/00015555-2939.