EndoscopyStomachEndoscopy, GastrointestinalCapsule EndoscopyEndoscopy, Digestive SystemStomach NeoplasmsGastroscopyStomach DiseasesEndoscopes, GastrointestinalGastrointestinal HemorrhageStomach UlcerEndoscopesGastric MucosaEsophagoscopyCapsule EndoscopesEsophageal DiseasesHelicobacter pyloriDuodenoscopyColonoscopyHelicobacter InfectionsGastrointestinal DiseasesUpper Gastrointestinal TractDyspepsiaEsophagusGastroenterologyMelenaFiber Optic TechnologyHemostasis, EndoscopicPyloric AntrumGastritisEsophagitisDuodenumBarrett EsophagusPeptic Ulcer HemorrhageHematemesisPeptic UlcerNarrow Band ImagingGastroesophageal RefluxIntestinal DiseasesIntestine, SmallDuodenal UlcerBiopsyMetaplasiaConscious SedationGastric FundusGastrointestinal NeoplasmsDouble-Balloon EnteroscopyEsophageal and Gastric VaricesGastrectomyHernia, HiatalEsophagitis, PepticAnti-Ulcer AgentsOmeprazolePolypsJejunal DiseasesBarium SulfateGastric JuiceEsophageal NeoplasmsStomach VolvulusColonoscopesProspective StudiesCapsulesRetrospective StudiesDigestive SystemSigmoidoscopyGastroscopesStomach RuptureGastric FistulaGastric AcidCardiaAngiodysplasiaColonic PolypsForeign BodiesDuodenal NeoplasmsGastritis, AtrophicGastrointestinal MotilityProton Pump InhibitorsUlcerDuodenitisColonic DiseasesDeglutition DisordersGastrinsPrecancerous ConditionsAdenocarcinomaGastrointestinal TractEsophageal StenosisTreatment OutcomeEsophagogastric JunctionAbdominal PainUreaseIntestinal MucosaEndosonographyAntacidsTime FactorsSensitivity and SpecificityJejunal NeoplasmsCholangiopancreatography, Endoscopic RetrogradeIntubation, GastrointestinalIntestinal Neoplasms2-Pyridinylmethylsulfinylbenzimidazoles