| Reference | Objective | Design | Evidence level |
|---|---|---|---|
| Evans et al. [479] | To identify the role of prolonged antibiotic therapy in modifying the outcome of purulent bronchiectasis | MA | 1B− |
| Bilton et al. [478] | To study the effect of adding inhaled tobramycin solution to oral ciprofloxacin for the treatment of acute exacerbations of non‐CF bronchiectasis in patients with P. aeruginosa infection | RCT | 2A− |
| Angrill et al. [89] | To investigate the incidence, diagnostic yield of non‐invasive and bronchoscopic techniques, and risk factors for airway colonization in patients with bronchiectasis in a stable clinical situation | PCS | 3B+ |
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