IleusGallstonesCholangitisCholangitis, SclerosingIntestinal ObstructionIntestinal FistulaBiliary FistulaCholelithiasisJejunal DiseasesIleal DiseasesSigmoid DiseasesCholecystectomyGastroscopesCholangiopancreatography, Endoscopic RetrogradeTomography, X-Ray ComputedGallbladderBileIntestinal Pseudo-ObstructionUrsodeoxycholic AcidLiver Cirrhosis, BiliaryCholangiographyLaparoscopyCholagogues and CholereticsBile DuctsCholecystolithiasisCholestasisBile Ducts, IntrahepaticMeconiumCommon Bile DuctCholecystitis, AcuteBile Duct NeoplasmsPancreatitisTokyoRetrospective StudiesCholecystitisCholecystectomy, LaparoscopicBiliary Tract DiseasesBile Duct DiseasesGallbladder DiseasesBile PigmentsCholedochostomyBiliary TractPostoperative ComplicationsCholangiopancreatography, Magnetic ResonancePortoenterostomy, HepaticCholangiocarcinomaCholedocholithiasisCommon Bile Duct DiseasesSphincterotomy, Endoscopic