ABCB4 and progressive familial intrahepatic cholestasis type 3: Variations in the ABCB4 gene are associated with several rare cholestatic diseases, including Progressive Familial Intrahepatic Cholestasis type 3 (PFIC3), Low Phospholipid-Associated Cholelithiasis (LPAC) syndrome, and Intrahepatic Cholestasis of Pregnancy (ICP) [4,5].