Second-tier test for quantification of alloisoleucine and branched-chain amino acids in dried blood spots to improve newborn screening for maple syrup urine disease (MSUD).
Oglesbee D, Sanders KA, Lacey JM, Magera MJ, Casetta B, Strauss KA, Tortorelli S, Rinaldo P, Matern D. Second-tier test for quantification of alloisoleucine and branched-chain amino acids in dried blood spots to improve newborn screening for maple syrup urine disease (MSUD). Clin Chem. 2008 Mar; 54(3):542-9.