RT Journal Article SR Electronic T1 Prolonged QTc and Hypokalemia: A Bad Combination Before Surgery JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP eS48 OP eS48 VO 77 IS 3 esuppl 1 A1 Alraies, Chadi A1 Alraiyes, Abdul Hamid YR 2010 UL http://www.ccjm.org/content/77/3_esuppl_1/eS48.abstract AB