Fig. 4From: Microspheres present comparable efficacy and safety profiles compared with polyvinyl alcohol for bronchial artery embolization treatment in hemoptysis patientsSurvival in subgroup analyses. In bronchiectasis patients, comparison of hemoptysis-free survival (A) and overall survival (B) between microspheres group and PVA group. In patients with other etiologies, comparison of hemoptysis-free survival (C) and overall survival (D) between microspheres group and PVA group. PVA, polyvinyl alcoholBack to article page