HLA-G and primary biliary cholangitis: The most frequent extended haplotypes in both groups were HLA-G*01:01:01:01/UTR-1, HLA-G*01:01:01:08/UTR-1, HLA-G*01:03:01:02/UTR-5, HLA-G*01:01:03:03/UTR-7 and HLA-G*01:01:02:01/UTR-2 [78/332 (23.5%), 77/332 (23.2%), 47/332 (14.2%), 32/332 (9.6%) and 18/332 (5.4%) in PBC patients vs 77/360 (21.4%), 45/360 (12.5%), 55/360 (15.3%), 24/360 (6.7%) and 43/360 (11.9%) in controls].