RT Journal Article SR Electronic T1 HF patients with preserved or reduced ejection fractions did not differ for survival or CV mortality at 5 years JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 153 OP 153 DO 10.1136/ebm.13.5.153 VO 13 IS 5 YR 2008 UL http://ebm.bmj.com/content/13/5/153.abstract AB