RT Journal Article SR Electronic T1 Preoperative Hypokalemia JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP S32 OP S32 VO 73 IS 9 esuppl 1 A1 Usmani, Ali A1 Sharma, Priyanka A1 Noor, Saira YR 2006 UL http://www.ccjm.org/content/73/9_esuppl_1/S32.1.abstract AB