RT Journal Article SR Electronic T1 Use of sleep care guidelines in a surgical intensive care unit reduces noise levels and improves patient-reported sleep quality JF Evidence Based Nursing JO Evid Based Nurs FD BMJ Publishing Group Ltd and RCN Publishing Company Ltd SP 99 OP 100 DO 10.1136/ebn1172 VO 14 IS 4 A1 Koch, Susan A1 Noble, Helen YR 2011 UL http://ebn.bmj.com/content/14/4/99.abstract AB