CholangiocarcinomaBile Ducts, ExtrahepaticBiliary Tract DiseasesBile Duct NeoplasmsBile Ducts, IntrahepaticGallbladderBiliary Tract NeoplasmsKlatskin's TumorGallbladder NeoplasmsBiliary TractCholelithiasisCholecystitisCholestasis, ExtrahepaticCholecystectomyGallbladder DiseasesGallstonesBileCholestasisRetrospective StudiesBiliary Tract Surgical ProceduresCholangiopancreatography, Endoscopic RetrogradeGallbladder EmptyingSurvival RatePancreatitisAdenoma, Bile DuctRespiratory Tract DiseasesBile DuctsLiver DiseasesHepatic Duct, CommonAcute DiseaseCholangitisOpisthorchisOpisthorchiasisLiver NeoplasmsCommon Bile DuctCholangiographyImino AcidsUrologic DiseasesRespiratory Tract InfectionsCholangitis, SclerosingAmpulla of VaterCystic DuctHepatectomyCholedochal CystCholecystographyCholangiopancreatography, Magnetic ResonanceBile Duct DiseasesDigestive System DiseasesJaundice, ObstructiveRespiratory Syncytial Virus InfectionsDrainageLithiasisCholedochostomyCA-19-9 AntigenPancreatic DiseasesCholecystectomy, LaparoscopicPortal VeinLiver