The sequence “FLEDRRAA” (sequence category 5 in Table 1) was significantly enriched in SSc patients compared with controls (p = 0.004, p value corrected for multiple comparisons pc = 0.032), primarily due to enrichment of DRB1*11:04 among SSc patients, as reported previously [3]. Here, HLA-DRB1 is linked to systemic sclerosis.