Khanna D, Lin CJF, Furst DE, Wagner B, Zucchetto M, Raghu G, Martinez FJ, Goldin J, Siegel J, Denton CP. Long-Term Safety and Efficacy of Tocilizumab in Early Systemic Sclerosis-Interstitial Lung Disease: Open-Label Extension of a Phase 3 Randomized Controlled Trial. Am J Respir Crit Care Med. 2022 03 15; 205(6):674-684.