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NursingHealth SciencesGastroenterologyGastroesophageal Reflux DiseaseSymptom AnalysisSymptom AssessmentSymptom ClustersSymptom MeasurementSymptom Prediction24-Hour Ph MonitoringReflux Symptom Index
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The symptom index: a clinically important parameter of ambulatory 24-hour esophageal pH monitoring.
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