RT Journal Article SR Electronic T1 Statistical approaches to uncertainty: p values and confidence intervals unpacked JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 133 OP 134 DO 10.1136/ebm.10.5.133 VO 10 IS 5 A1 HELEN DOLL A1 STUART CARNEY YR 2005 UL http://ebm.bmj.com/content/10/5/133.abstract AB