title: A serum esterase variation in Microtus agrestis (L.).
mesh_terms: D000818:Animals; D004950:Esterases / Q000097:blood*; D005787:Gene Frequency; D007527:Isoenzymes; D011110:Polymorphism, Genetic; D012377:Rodentia / Q000201:enzymology*
chemical_list: D007527:Isoenzymes; D004950:Esterases