title: Polymorphism of the mixed lymphocyte response of wild Norway rats.
mesh_terms: D000818:Animals; D008040:Genetic Linkage; D006238:Haploidy; D007959:Lymphocyte Culture Test, Mixed; D009664:Norway; D011110:Polymorphism, Genetic; D051381:Rats; D011919:Rats, Inbred Strains