RT Journal Article
SR Electronic
T1 COPD in the ECRHS
JF Thorax
JO Thorax
FD BMJ Publishing Group Ltd and British Thoracic Society
SP 89
OP 90
DO 10.1136/thx.2003.018598
VO 59
IS 2
A1 J Vestbo
YR 2004
UL http://thorax.bmj.com/content/59/2/89.abstract
AB