HLA-C and systemic sclerosis: The HLA HLA-C*12:03-B*18:01 and HLA-C*07:01-B*08:01 haplotypes are associated to susceptibility to dcSSc whereas C*07:02-B*39:05, C*07:02-B*39:06 and DQB1*03:01 are associated to protection to SSc.