Naumova, Nadia N Reducing substances in urine: a paradigm for changes in a standard test. [electronic resource] - Annals of clinical and laboratory science 2006 - 447-8 p. digital Publication Type: Journal Article ISSN: 0091-7370 Subjects--Topical Terms: Chemistry, Clinical--methodsHumansInfant, NewbornInfant, Newborn, Diseases--urineMetabolism, Inborn Errors--diagnosisNeonatal Screening--methodsReducing Agents--analysis