RT Journal Article SR Electronic T1 Specific clinical findings, including coma, neck stiffness and seizures, increase the likelihood of haemorrhagic stroke, but no combination of features is definitively diagnostic JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 183 OP 184 DO 10.1136/ebm1121 VO 15 IS 6 A1 Michael D Hill YR 2010 UL http://ebm.bmj.com/content/15/6/183.abstract AB