%0 Journal Article %B N Engl J Med %D 2010 %G eng %N 20 %P 1928-37 %R 10.1056/NEJMsa0911535 %T Effect of a comprehensive surgical safety system on patient outcomes. %V 363 %1 https://www.ncbi.nlm.nih.gov/pubmed/21067384 %8 11/2010