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MLA Citation
Zaid Zoumot et al.. “Endobronchial valves for patients with heterogeneous emphysema and without interlobar collateral ventilation: open label treatment following the BeLieVeR-HIFi study.” Thorax, vol. 72, no. 3, 2017, pp. 277–279. http://access.bl.uk/ark:/81055/vdc_100137791801.0x000021