1. Volume 386, Issue 9998, Pages 1066-1073 (September 2015)
Bronchoscopic lung volume reduction with endobronchial valves for patients with heterogeneous emphysema and intact interlobar fissures (the BeLieVeR-HIFi study): a randomised controlled trial 
Claire Davey, MSc, Zaid Zoumot, PhD, Simon Jordan, MD, William H McNulty, MBBS, Dennis H Carr, MD, Matthew D Hind, PhD, Prof David M Hansell, MD, Michael B Rubens, MBBS, Winston Banya, MSc, Prof Michael I Polkey, PhD, Pallav L Shah, MD, Dr Nicholas S Hopkinson, PhD 
The Lancet 
Volume 386, Issue 9998, Pages (September 2015)
DOI: /S (15)
Copyright © 2015 Davey et al. Open Access article distributed under the terms of CC BY Terms and Conditions

2. Figure 1
Trial profile
6MWD=6 min walking distance. PFTs=pulmonary function tests. COPD=chronic obstructive pulmonary disease.
The Lancet  , DOI: ( /S (15) )
Copyright © 2015 Davey et al. Open Access article distributed under the terms of CC BY Terms and Conditions

3. Figure 2
Change in forced expiratory volume in 1 s (FEV1) at 3 months in patients treated with bronchoscopic lung volume reduction with endobronchial valves compared with controls who underwent sham treatment
Bars are mean and 95% CIs. Red symbols represent the four patients who had collateral ventilation detected using the Chartis system and were treated with bronchoscopic lung volume reduction.
The Lancet  , DOI: ( /S (15) )
Copyright © 2015 Davey et al. Open Access article distributed under the terms of CC BY Terms and Conditions