PT - JOURNAL ARTICLE ED - , TI - Patients with acute exacerbations of COPD saw anxiety as a sign, rather than cause, of breathlessness AID - 10.1136/ebn.8.2.61 DP - 2005 Apr 01 TA - Evidence Based Nursing PG - 61--61 VI - 8 IP - 2 4099 - http://ebn.bmj.com/content/8/2/61.short 4100 - http://ebn.bmj.com/content/8/2/61.full SO - Evid Based Nurs2005 Apr 01; 8