%0 Journal Article %B Chest %D 2009 %G eng %N 4 %P 1038-1044 %R 10.1378/chest.08-1544 %T Physician staffing models and patient safety in the ICU. %V 135 %1 https://www.ncbi.nlm.nih.gov/pubmed/19349399 %8 04/2009