Bile RefluxGastritisDuodenogastric RefluxGastroesophageal RefluxBileGastritis, AtrophicBile Acids and SaltsPostgastrectomy SyndromesGastric MucosaHelicobacter pyloriHelicobacter InfectionsBarrett EsophagusStomachPyloric AntrumEsophagusAnastomosis, Roux-en-YVesico-Ureteral RefluxBiliary Tract DiseasesMetaplasiaGastric JuiceManometryBile DuctsEsophagitis, PepticDyspepsiaGastroscopyGastritis, HypertrophicLaryngopharyngeal RefluxBilirubinEsophagitisPepsinogen AEsophageal pH Monitoring