SLC25A13 and neonatal intrahepatic cholestasis due to citrin deficiency: Neonatal intrahepatic cholestasis caused by citrin deficiency (NICCD, OMIM 605814) is an autosomal recessive disorder resulting in neonatal cholestasis, which is caused by dysfunction of citrin, a liver-type aspartate/glutamate carrier protein located within mitochondrial inner membrane (2).