RT Journal Article SR Electronic T1 The San Francisco Syncope Rule was useful for stratifying risk in emergency department patients with syncope JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 186 OP 186 DO 10.1136/ebm.11.6.186 VO 11 IS 6 YR 2006 UL http://ebm.bmj.com/content/11/6/186.abstract AB