PT - JOURNAL ARTICLE ED - , TI - Patient controlled analgesia was more effective than nurse controlled analgesia after cardiac surgery AID - 10.1136/ebn.3.2.53 DP - 2000 Apr 01 TA - Evidence Based Nursing PG - 53--53 VI - 3 IP - 2 4099 - http://ebn.bmj.com/content/3/2/53.short 4100 - http://ebn.bmj.com/content/3/2/53.full SO - Evid Based Nurs2000 Apr 01; 3