ATM and systemic sclerosis: We performed GWAS stratified analyses considering the main SSc clinical subtypes (limited cutaneous SSc (lcSSc) or diffuse cutaneous SSc (dcSSc)) and autoantibody status according to the presence of anticentromere (ACA), antitopoisomerase (ATA), and anti-RNA polymerase III (ARA) autoantibodies (Supplementary Table 4) (Methods).