RT @AdvancesTherapy: Effects of tiotropium combined with theophylline on stable #COPD patients of group B, D and its impact on small airway…
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RT @AdvancesTherapy: Effects of tiotropium combined with theophylline on stable #COPD patients of group B, D and its impact on small airway…
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RT @AdvancesTherapy: Effects of tiotropium combined with theophylline on stable #COPD patients of group B, D and its impact on small airway…
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Effects of tiotropium combined with theophylline on stable #COPD patients of group B, D and its impact on small airway function https://t.co/15STJHtBPi https://t.co/oO12GRtWEn