RT Journal Article
SR Electronic
T1 A tale of two letters
JF Thorax
JO Thorax
FD BMJ Publishing Group Ltd and British Thoracic Society
SP 291
OP 291
DO 10.1136/thoraxjnl-2014-205104
VO 69
IS 3
A1 Andrew Bush
A1 Ian Pavord
YR 2014
UL http://thorax.bmj.com/content/69/3/291.abstract
AB