Survival and organ involvement in patients with limited cutaneous systemic sclerosis and anti-topoisomerase-I antibodies: determined by skin subtype or auto-antibody subtype? A long-term follow-up study - Kranenburg, P; van den Hombergh, W M; Knaapen-Hans, H K; van den Hoogen, F H; Fransen, J; Vonk, M C (Rheumatology (Oxford), 2016)