RT Journal Article SR Electronic T1 Severity of cognitive impairment at initial diagnosis of Alzheimer’s disease was the strongest predictor of survival JF Evidence Based Nursing JO Evid Based Nurs FD BMJ Publishing Group Ltd and RCN Publishing Company Ltd SP 120 OP 120 DO 10.1136/ebn.7.4.120 VO 7 IS 4 YR 2004 UL http://ebn.bmj.com/content/7/4/120.abstract AB