RT Journal Article SR Electronic T1 Review: sedative hypnotics may improve sleep quality but increase adverse effects in elderly people with insomnia JF Evidence Based Nursing JO Evid Based Nurs FD BMJ Publishing Group Ltd and RCN Publishing Company Ltd SP 87 OP 87 DO 10.1136/ebn.9.3.87 VO 9 IS 3 YR 2006 UL http://ebn.bmj.com/content/9/3/87.abstract AB