title: Adenosine deaminase (ADA) polymorphism in Northern England.
mesh_terms: D000241:Adenosine; D000619:Aminohydrolases / Q000097:blood*; D001797:Blood Protein Electrophoresis; D004592:Electrophoresis, Starch Gel; D004739:England; D004912:Erythrocytes / Q000201:enzymology*; D005787:Gene Frequency; D005828:Genetics, Population; D006801:Humans; D008967:Molecular Biology; D010641:Phenotype; D011110:Polymorphism, Genetic
chemical_list: D000619:Aminohydrolases; D000241:Adenosine