The cost-effectiveness of expanding the NHS newborn bloodspot screening programme to include homocystinuria (HCU), maple syrup urine disease (MSUD), glutaric aciduria type 1 (GA1), isovaleric acidaemia (IVA), and long-chain hydroxyl acyl-CoA dehydrogenase deficiency (LCHADD) (2014) BesseyAlice ChilcottJim PaisleySuzy PandorAbdullah 2020 <div> The NHS newborn bloodspot screening programme screens all babies in England for five rare conditions. This study assessed the economics of expanding the screening programme to include five new inborn errors of the metabolism; HCU, MSUD, GA1, IVA, and LCHADD. <br></div>