Systemic sclerosis sine scleroderma: distinct features in a large Brazilian cohort - Marangoni, Roberta Gonçalves; Rocha, Luiza Fuoco; Del Rio, Ana Paula T.; Yoshinari, Natalino H.; Marques-Neto, João Francisco; Sampaio-Barros, Percival D. (Rheumatology, 2013)