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neonatal hyperbilirubinemianewborn hyperbilirubinemia
excess serum bilirubin in the newborn infant, due either to overproduction of bilirubin, as in excessive destruction of erythrocytes, or to reduction in glucuronide conjugation in the liver. It occurs briefly in almost all infants, but if it persists, kernicterus may occur if free unconjugated bilirubin enters the brain tissue and causes toxicity.

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