%0 Journal Article %B Ann Surg %D 2016 %G eng %N 6 %P 997-1003 %T The Safer Delivery of Surgical Services Program (S3): Explaining Its Differential Effectiveness and Exploring Implications for Improving Quality in Complex Systems. %V 264 %1 https://www.ncbi.nlm.nih.gov/pubmed/26704740 %8 12/2016