title: Management of hyperphenylalaninaemia (HPA) in Northern Ireland.
mesh_terms: D000592:Amino Acid Metabolism, Inborn Errors / Q000453:epidemiology* / Q000628:therapy; D001681:Biological Assay; D004035:Diet Therapy; D006801:Humans; D007231:Infant, Newborn; D008403:Mass Screening; D010649:Phenylalanine / Q000097:blood* / Q000378:metabolism; D010661:Phenylketonurias / Q000453:epidemiology
chemical_list: D010649:Phenylalanine