Biliary Tract NeoplasmsRespiratory Tract NeoplasmsBiliary Tract DiseasesBiliary TractBiliary Tract Surgical ProceduresGallbladder NeoplasmsCholangiocarcinomaBile Duct NeoplasmsBile Ducts, ExtrahepaticGallstonesCholelithiasisBile Ducts, IntrahepaticCholangitisGallbladderCholecystectomyAmpulla of VaterBile DuctsCholedochostomyCommon Bile DuctBilePancreatic NeoplasmsCholecystitisCholestasisCholangiopancreatography, Endoscopic RetrogradeBiliary FistulaCholangiographyBile Duct DiseasesCholestasis, ExtrahepaticHepatic Duct, CommonCholedochal CystDeoxycytidineGallbladder DiseasesNeoplasmsUrinary Tract InfectionsCA-19-9 AntigenJaundiceLiver NeoplasmsPancreatic DiseasesNeoplasms, Cystic, Mucinous, and SerousCarcinomaMammaglobin BJejunostomyCommon Bile Duct DiseasesDrainageGastrointestinal TractDigestive System NeoplasmsCystic DuctUrinary Tract