RT Journal Article SR Electronic T1 Additional Articles Abstracted in ACP Journal Club JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 132 OP 132 DO 10.1136/ebm.1999.4.132 VO 4 IS 5 YR 1999 UL http://ebm.bmj.com/content/4/5/132.abstract AB