PT - JOURNAL ARTICLE AU - Patricia A Hickey TI - Increasing nurse staffing levels in cardiac surgery centres appears to be a cost effective patient safety intervention AID - 10.1136/ebn1096 DP - 2010 Oct 01 TA - Evidence Based Nursing PG - 102--102 VI - 13 IP - 4 4099 - http://ebn.bmj.com/content/13/4/102.short 4100 - http://ebn.bmj.com/content/13/4/102.full SO - Evid Based Nurs2010 Oct 01; 13