Bile RefluxBileBile Acids and SaltsDuodenogastric RefluxGastroesophageal RefluxDuodenumGlycocholic AcidPostgastrectomy SyndromesCholelithiasisGallbladderBile DuctsChenodeoxycholic AcidDeoxycholic AcidUrsodeoxycholic AcidGastritisBarrett EsophagusEsophagusVesico-Ureteral RefluxAnastomosis, Roux-en-YBiliary Tract DiseasesManometryStomachGastric JuiceCommon Bile DuctCholesterolEsophagitis, PepticGastric MucosaPyloric AntrumBile CanaliculiBilirubinBile PigmentsMetaplasiaBile Duct DiseasesLaryngopharyngeal RefluxDyspepsiaBile Ducts, IntrahepaticHelicobacter pyloriBile Duct NeoplasmsHelicobacter InfectionsBile Ducts, ExtrahepaticEsophageal pH Monitoring