Gastrointestinal HemorrhagePeptic Ulcer HemorrhageMelenaHematemesisMallory-Weiss SyndromeHemorrhageDuodenal DiseasesCerebral HemorrhageEsophageal and Gastric VaricesSubarachnoid HemorrhageBrunner GlandsEndoscopyEndoscopy, GastrointestinalEsophageal DiseasesStomach UlcerStomach DiseasesGastroscopyHemostatic TechniquesHemostasis, EndoscopicGastropexyMeckel DiverticulumIntracranial HemorrhagesIleal DiseasesDuodenal UlcerHypertension, PortalPeptic UlcerHemobiliaJejunal NeoplasmsDouble-Balloon EnteroscopyRetinal HemorrhageFiber Optic TechnologySplenic ArteryBarium SulfateVascular MalformationsUlcerAcute DiseaseAngiographyEmergenciesGastric FistulaEmbolization, TherapeuticPostpartum HemorrhageDuodenal NeoplasmsTreatment OutcomeJejunal DiseasesColonic NeoplasmsIntestinal FistulaAneurysm, FalseVascular FistulaBlood TransfusionIntestinal PerforationAspirinLaparotomyFatal OutcomeVitreous HemorrhageAnti-Inflammatory Agents, Non-SteroidalEye HemorrhageHepatic ArteryGastrointestinal NeoplasmsRecurrenceAneurysmColon, DescendingProspective StudiesLiver CirrhosisRisk FactorsPostoperative ComplicationsDuodenumTomography, X-Ray ComputedVaricose VeinsRetrospective StudiesIntestinal NeoplasmsFibrinolytic AgentsLactonesProton Pump InhibitorsIntestine, SmallSulfonesBasal Ganglia HemorrhageMedical AuditGastrointestinal DiseasesTime FactorsVasospasm, IntracranialRisk AssessmentIntracranial Hemorrhage, HypertensiveSeverity of Illness IndexPostoperative HemorrhageHematomaColon, SigmoidHospitalizationPyrazolesColon, AscendingLength of StayAge FactorsIntracranial AneurysmChoroid HemorrhageRandomized Controlled Trials as TopicCohort StudiesPutaminal Hemorrhage