Gastroenterology · 1998 · 17 citations · 0 references
MedicineInternal MedicineGastroenterologyGeneral Internal MedicineHealth AssessmentEsophageal DiseasesGastroesophageal Reflux DiseaseHealth-related Quality Of LifeHealth-related Quality Of Life MeasurementQuality Of LifeQuality Of Life AssessmentExtraesophageal Reflux SymptomsGerd Symptom AssessmentPsychometric ModelingPsychometric PropertiesReflux Symptom Index