It includes three age-dependent clinical phenotypes: neonatal intrahepatic cholestasis caused by citrin deficiency(NICCD), adult-onset type II citrullinemia (CTLN2) and failure to thrive and dyslipidemia caused by citrin deficiency (FTTDCD) between NICCD and CTLN2 stages (1). This evidence concerns the gene SLC25A13 and citrin deficiency.