title: Guthrie cards for detection of point mutations in phenylketonuria.
mesh_terms: D000352:Africa, Northern / Q000208:ethnology; D004247:DNA / Q000032:analysis*; D005060:Europe / Q000208:ethnology; D005821:Genetic Techniques / Q000295:instrumentation; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D009154:Mutation; D010661:Phenylketonurias / Q000235:genetics*; D012189:Retrospective Studies
chemical_list: D004247:DNA