PT - JOURNAL ARTICLE AU - Vestbo, J TI - COPD in the ECRHS AID - 10.1136/thx.2003.018598 DP - 2004 Feb 01 TA - Thorax PG - 89--90 VI - 59 IP - 2 4099 - http://thorax.bmj.com/content/59/2/89.short 4100 - http://thorax.bmj.com/content/59/2/89.full SO - Thorax2004 Feb 01; 59