RT Journal Article SR Electronic T1 Evidently... JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 8 OP 8 DO 10.1136/ebm.10.1.8 VO 10 IS 1 A1 Richard Lehman YR 2005 UL http://ebm.bmj.com/content/10/1/8.abstract AB