PT - JOURNAL ARTICLE ED - , TI - Multiple attempts to stop smoking, even with relapses, reduced loss of pulmonary function AID - 10.1136/ebn.2.3.90 DP - 1999 Jul 01 TA - Evidence Based Nursing PG - 90--90 VI - 2 IP - 3 4099 - http://ebn.bmj.com/content/2/3/90.short 4100 - http://ebn.bmj.com/content/2/3/90.full SO - Evid Based Nurs1999 Jul 01; 2