%0 Journal Article %B AAOHN J %D 2009 %G eng %N 12 %P 497-504 %R 10.3928/08910162-20091124-05 %T Effects of extended work shifts and shift work on patient safety, productivity, and employee health. %V 57 %1 https://www.ncbi.nlm.nih.gov/pubmed/20043622 %8 12/2009