Correction: The effect of executive walk rounds on nurse safety climate attitudes: A randomized trial of clinical units [ISRCTN85147255]

Address: 1Department of Internal Medicine, The University of Texas Medical School at Houston, Houston, TX, USA, 2Department of Anesthesiology and Critical Care Medicine, Johns Hopkins Quality and Safety Research Group, The Johns Hopkins University School of Medicine, Baltimore, USA, 3Center for AIDS Prevention Studies (CAPS), University of California, San Francisco, San Francisco, CA, USA, 4Partners Healthcare System, Prudential Tower, Boston, MA, USA and 5Department of Psychology, The University of Texas at Austin, Austin, TX, USA