RT Journal Article SR Electronic T1 The curious incident of the cast in the airway JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP thoraxjnl-2020-216426 DO 10.1136/thoraxjnl-2020-216426 A1 Yueqi Ge A1 Emily C Bartlett A1 Thomas Semple A1 Alexandra Rice A1 Anand Shah A1 Elisabetta A Renzoni YR 2021 UL http://thorax.bmj.com/content/early/2021/05/07/thoraxjnl-2020-216426.abstract AB