SSc	Systemic sclerosis
ILD	Interstitial lung disease
HRCT	High-resolution computed tomography
PFTs	Pulmonary function tests
DLCO	Diffusion of the lung for carbon oxide
FVC	Forced vital capacity
EUSTAR	European Scleroderma Trial and Research
dcSSc	Diffuse cutaneous subset of SSc
lcSSc	Limited cutaneous subset of SSc
ACA	Anticentromere antibodies
Topo-I	Anti-topoisomerase I
RNA-Pol III	Anti-RNA polymerase III antibodies