PERSISTENT EFFECT OF MIGLUSTAT ON CHILDREN WITH NIEMANN-PICK C DISEASE Chien YH 1 , Peng SF 1 , Hwu WL 1 , Yang CC 1 , Lee NC 1 , Tsai LK 1 , Huang AC 1 , Su SC 1 , Tseng CC 1 1 National Taiwan University Hospital, Taipei, Taiwan