title: The genetics of LD2. I. Gene frequency: an estimation.
mesh_terms: D000483:Alleles; D003434:Crossing Over, Genetic; D005787:Gene Frequency; D006680:HLA Antigens / Q000235:genetics*; D006801:Humans; D007959:Lymphocyte Culture Test, Mixed; D008285:Major Histocompatibility Complex; D011110:Polymorphism, Genetic; D011995:Recombination, Genetic
chemical_list: D006680:HLA Antigens