CholangitisCholangitis, SclerosingCholangiopancreatography, Endoscopic RetrogradeLiver Cirrhosis, BiliaryBile DuctsCholestasisCholagogues and CholereticsBile Ducts, IntrahepaticCholangiographyUrsodeoxycholic AcidTokyoBile Duct NeoplasmsCholedochostomyPortoenterostomy, HepaticBile Duct DiseasesCholangiocarcinomaGallstonesSphincterotomy, EndoscopicBiliary Tract DiseasesCholangiopancreatography, Magnetic ResonanceCholecystitis, AcuteCommon Bile DuctHepatitis, AutoimmuneAdenoma, Bile DuctLiver TransplantationBiliary AtresiaDrainageCommon Bile Duct DiseasesJaundice, ObstructivePancreatitisJejunostomyColitis, UlcerativeHepatic Duct, CommonAutoimmune DiseasesCholecystectomyBiliary TractJaundiceCaroli DiseaseCholecystitisBileCholedocholithiasisSclerosisBiliary Tract Surgical ProceduresBiliary Tract NeoplasmsLiver DiseasesBile Ducts, ExtrahepaticCholelithiasisAcute DiseaseCholestasis, ExtrahepaticLithiasisConstriction, PathologicCholedochal CystLiverAmpulla of VaterHLA-B8 AntigenAnastomosis, Roux-en-YHLA-DR Serological SubtypesPostoperative ComplicationsEndoscopy, Digestive SystemAcalculous CholecystitisInflammatory Bowel DiseasesRecurrenceGallbladderLiver Function TestsDilatationRetrospective StudiesCholestasis, IntrahepaticHemobiliaAutoantibodies