%0 Journal Article %B Arch Pediatr Adolesc Med %D 2011 %G eng %N 5 %P 419-23 %R 10.1001/archpediatrics.2011.47 %T Reduction in hospital mortality over time in a hospital without a pediatric medical emergency team: limitations of before-and-after study designs. %V 165 %1 https://www.ncbi.nlm.nih.gov/pubmed/21536956 %8 05/2011