RT Journal Article SR Electronic T1 PubMed clinical queries JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 8 OP 8 DO 10.1136/ebm.6.1.8 VO 6 IS 1 A1 Michael H Zaroukian YR 2001 UL http://ebm.bmj.com/content/6/1/8.abstract AB