%0 Journal Article %B Am J Obstet Gynecol %D 2009 %G eng %N 5 %P 492.e1-8 %R 10.1016/j.ajog.2009.01.022 %T Impact of a comprehensive patient safety strategy on obstetric adverse events. %V 200 %1 https://www.ncbi.nlm.nih.gov/pubmed/19249729 %8 05/2009