RT Journal Article
SR Electronic
T1 Reply
JF Thorax
JO Thorax
FD BMJ Publishing Group Ltd and British Thoracic Society
SP 218
OP 218
DO 10.1136/thx.43.3.218-a
VO 43
IS 3
A1 PJM GEORGE
A1 MR Hetzel
A1 FJC MILLARD
YR 1988
UL http://thorax.bmj.com/content/43/3/218.2.abstract
AB