RT Journal Article
SR Electronic
T1 Clinical chest radiology
JF Thorax
JO Thorax
FD BMJ Publishing Group Ltd and British Thoracic Society
SP 323
OP 323
DO 10.1136/thx.48.4.323
VO 48
IS 4
A1 Ian H Kerr
YR 1993
UL http://thorax.bmj.com/content/48/4/323.abstract
AB