Three of them are part of the last American College of Rheumatology (ACR)/European Alliance of Associations for Rheumatology (EULAR) SSc classification criteria: anti-topoisomerase-I (ATA) usually associated with dcSSc and ILD, anti-centromere (ACA) with lcSSc and PAH and anti-RNA polymerase-III Aab (ARA) with dcSSc and renal crisis.4 Here, ATM is linked to systemic sclerosis.