title: [Upper endoscopy in the etiological diagnosis of pyloric syndrome].
mesh_terms: D000328:Adult; D000368:Aged; D002764:Cholecystitis / Q000150:complications; D003424:Crohn Disease / Q000150:complications; D005260:Female; D005773:Gastroscopy; D006801:Humans; D008297:Male; D008875:Middle Aged; D010437:Peptic Ulcer / Q000150:complications; D011446:Prospective Studies; D011707:Pyloric Stenosis / Q000175:diagnosis* / Q000209:etiology / Q000628:therapy; D013274:Stomach Neoplasms / Q000150:complications
vernacular_title: Contribución de la endoscopía alta en el diagnóstico etiológico del síndrome pilórico.