| UHF-US | Ultra-high-frequency ultrasound |
| ICC | Intraclass correlation coefficient |
| SSc | Systemic sclerosis |
| lcSSc | Limited cutaneous systemic sclerosis |
| dcSSc | Diffuse cutaneous systemic sclerosis |
| mRSS | Modified Rodnan skin score |
| UHF-US | Ultra-high-frequency ultrasound |
| ICC | Intraclass correlation coefficient |
| SSc | Systemic sclerosis |
| lcSSc | Limited cutaneous systemic sclerosis |
| dcSSc | Diffuse cutaneous systemic sclerosis |
| mRSS | Modified Rodnan skin score |