%0 Journal Article %B JAMA Surg %D 2018 %G eng %N 9 %P 860-862 %R 10.1001/jamasurg.2018.1047 %T Evaluation of Reasons Why Surgical Residents Exceeded 2011 Duty Hour Requirements When Offered Flexibility: A FIRST Trial Analysis. %V 153 %1 https://www.ncbi.nlm.nih.gov/pubmed/29898203 %8 12/2018