@article{article, title = {{Direct visualisation of collateral ventilation in COPD with hyperpolarised gas MRI.}}, url = {{https://eprints.whiterose.ac.uk/119984/ }}, year = {{2012}}, month = {{1}}, author = {{Marshall H and Deppe MH and Parra-Robles J and Hillis S and Billings CG and Rajaram S and Swift A and Miller SR and Watson JH and Wolber J and Lipson DA et al}}, doi = {{10.1136/thoraxjnl-2011-200864}}, volume = {{67}}, journal = {{Thorax}}, issue = {{7}}, pages = {{613-617}}, note = {{Accessed on 2025/04/08}}}