CholangiocarcinomaBile Ducts, IntrahepaticBile Duct NeoplasmsKlatskin's TumorHepatic Duct, CommonAdenoma, Bile DuctBiliary Tract Surgical ProceduresHepatectomyIridium RadioisotopesDrainageSterol EsteraseJaundice, ObstructiveCholangiopancreatography, Endoscopic RetrogradePortal VeinBile Ducts, ExtrahepaticOpisthorchisLipolysisOpisthorchiasisSurvival RateRetrospective StudiesTreatment OutcomeCholangiographyHepatic ArteryPalliative CarePreoperative CareVascular NeoplasmsCommon Bile DuctNeoplasm StagingEndoscopyPrognosisLiver TransplantationBilirubinRadiotherapy, AdjuvantLaparotomyCyclic AMP-Dependent Protein KinasesKaplan-Meier EstimateBrachytherapySurvival AnalysisCholangitis, SclerosingNeoplasm InvasivenessNeoadjuvant TherapyLymphatic MetastasisLiver NeoplasmsPostoperative ComplicationsLithiasisClonorchiasisStentsFascioliasisTomography, X-Ray ComputedBile DuctsFasciola hepaticaCombined Modality TherapyClonorchis sinensisThailandGallbladder NeoplasmsImmunohistochemistryFollow-Up Studies