%0 Journal Article %B Int J Nurs Stud %D 2009 %G eng %N 6 %P 796-803 %R 10.1016/j.ijnurstu.2008.12.018 %T The relationship between inpatient cardiac surgery mortality and nurse numbers and educational level: analysis of administrative data. %V 46 %1 https://www.ncbi.nlm.nih.gov/pubmed/19201407 %8 06/2009