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Mean score for each FFSG question in asthma (a), COPD (b), and disease control (c) patients with GERD. Asthma patients (n = 10), COPD patients (n = 13), and disease control patients were diagnosed as having GERD by the FSSG survey in each group. Vertical bars from 0 to 2 show the mean score for each question. *Significant difference between asthma and COPD. #Significant difference between COPD and disease controls.
