HLA-G and primary biliary cholangitis: Haplotype frequencies observed at the HLA-G 3’UTR polymorphic sites (14bp Ins/Del, 3003C/T, 3010CG, 3027A/C, 3035C/T, 3142C/G, 3187A/G, 3196C/G) in PBC and AIH type 1 patients.