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OBJECTIVES To validate a Work Productivity and Activity Impairment questionnaire (WPAI-GERD) developed to measure lost productivity due to symptoms of gastro-esophageal reflux disease (GERD). (More)
BACKGROUND AND OBJECTIVE Research on the negative impact of gastro-oesophageal reflux disease (GORD) on the health-related quality of life (HR-QOL) and resource utilization of patients with(More)
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