S118 Direct visualisation of collateral ventilation in COPD with hyperpolarised Gas MRI
H Marshall, M H Deppe, J Parra-Robles, S Hillis, C Billings, S R Miller, J H Watson, J Wolber, D A Lipson, R Lawson, J M Wild
Thorax Dec 2011, 66 (Suppl 4) A54-A55; DOI: 10.1136/thoraxjnl-2011-201054b.118