title: HL-A haplotypes and unexplained infertility.
mesh_terms: D000483:Alleles; D003601:Cytotoxicity Tests, Immunologic; D005260:Female; D006238:Haploidy; D006649:Histocompatibility Antigens; D006650:Histocompatibility Testing; D006801:Humans; D007246:Infertility / Q000235:genetics / Q000276:immunology*; D008297:Male
chemical_list: D006649:Histocompatibility Antigens