ACR/EULAR	American College of Rheumatology/European League Against Rheumatism
Scl70	Anti-topoisomerase I autoantibodies
ACA	Anti-centromeric antibodies
dcSSc	Diffuse cutaneous systemic sclerosis
DLCO	Diffusion lung for carbon monoxide
DA	Disease activity
DD	Disease duration
ΔCP	Dyspnea
ESR	Erythrocyte sedimentation rate
GGOs	Ground-glass opacities
HRCT	High resolution computed tomography
HC	Honeycombing
ILD	Interstitial lung disease
lcSSc	Limited cutaneous systemic sclerosis
mRSS	Modified Rodnan skin score
NVC	Nailfold videocapillaroscopy
NEMO score	Number of microhemorrhages score
NSIP	Nonspecific interstitial pneumonia
RP	Raynaud’s phenomenon
SSc	Systemic sclerosis
SPAP	Systolic pulmonary artery pressure
TE-ILD	Total extent of ILD
UIP	Usual interstitial pneumonia