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Background: Jaundice is one of the most common and one of the vexing problems that can occur in newborns. A newborn screening test for biotinidase deficiency has been added to many national screening programmes. Aim: To clarify the problem of false-positive screening tests in neonates, especially in term babies, we evaluated the biotinidase activity in the serum of fullterm, premature and small-for-dates...
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