title: Hemoglobin polymorphism in Microtus pennsylvanicus.
mesh_terms: D000818:Animals; D004588:Electrophoresis, Cellulose Acetate; D006454:Hemoglobins; D011110:Polymorphism, Genetic; D012377:Rodentia / Q000097:blood*; D013045:Species Specificity
chemical_list: D006454:Hemoglobins