RT Journal Article SR Electronic T1 An escalating higher energy regimen was better than a fixed lower energy regimen for defibrillation in out of hospital cardiac arrest JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 142 OP 142 DO 10.1136/ebm.12.5.142 VO 12 IS 5 YR 2007 UL http://ebm.bmj.com/content/12/5/142.abstract AB