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Response rate of the placebo group (red bars) and HL301 group (gray bars) in the full analysis set (FAS) and the per protocol set (PPS). Response rate indicates the percentile of patients whose bronchitis severity score (BSS) was below 3 points at visit 3 or whose BSS at visit 2 decreased by more than 7 points at visit 3. ap < 0.005.
