title: Monitoring for changing mutation rates using blood samples submitted for PKU screening.
mesh_terms: D014644:Genetic Variation; D005914:Globins / Q000235:genetics; D006801:Humans; D007231:Infant, Newborn; D008403:Mass Screening; D009154:Mutation; D010661:Phenylketonurias / Q000097:blood / Q000235:genetics*
chemical_list: D005914:Globins