PT - JOURNAL ARTICLE ED - , TI - Clinical investigation of pulmonary vascular disease DP - 2008 Dec 01 TA - Thorax PG - A53--A56 VI - 63 IP - Suppl 7 4099 - http://thorax.bmj.com/content/63/Suppl_7/A53.short 4100 - http://thorax.bmj.com/content/63/Suppl_7/A53.full SO - Thorax2008 Dec 01; 63