RT Journal Article SR Electronic T1 Preoperative Coronary Angiography: Friend or Foe? JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP eS50 OP eS50 VO 76 IS 2 esuppl 1 A1 Ross Kerridge YR 2009 UL http://www.ccjm.org/content/76/2_esuppl_1/eS50.abstract AB