RT Journal Article SR Electronic T1 Long QT syndrome (August 2008) JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 87 OP 88 DO 10.3949/ccjm.76c.08061 VO 76 IS 2 A1 Radhakrishnan Ramaraj YR 2009 UL http://www.ccjm.org/content/76/2/87.abstract AB