RT Journal Article SR Electronic T1 The first symptom of hyperkalaemia is death JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 134 OP 134 DO 10.1136/ebm.9.5.134 VO 9 IS 5 A1 Charles M Grossman YR 2004 UL http://ebm.bmj.com/content/9/5/134.1.abstract AB