RT Journal Article SR Electronic T1 Evidence-Based On Call Acute Medicine JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 168 OP 168 DO 10.1136/ebm.6.6.168 VO 6 IS 6 A1 Jon C Tilburt A1 Rajesh S Mangrulkar YR 2001 UL http://ebm.bmj.com/content/6/6/168.abstract AB