RT Journal Article SR Electronic T1 It ain't necessarily so: a surprising lower airway infection JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 96 OP 97 DO 10.1136/thoraxjnl-2016-209230 VO 72 IS 1 A1 Brugha, Rossa A1 Hall, Anne A1 Bush, Andrew YR 2017 UL http://thorax.bmj.com/content/72/1/96.abstract AB