Lapatinib Completed Phase 2 Trials for Recurrent Extrahepatic Bile Duct Cancer / Adult Primary Hepatocellular Carcinoma / Recurrent Gallbladder Cancer / Recurrent Adult Primary Liver Cancer / Localized Unresectable Adult Primary Liver Cancer / Advanced Adult Primary Liver Cancer / Unresectable Gallbladder Cancer / Unresectable Extrahepatic Bile Duct Cancer Treatment