Address for correspondence: Dr. Khalil Ibrahim, University of Illinois at Chicago, 840 South Wood Street, MC 715, Suite 920S, Chicago, Illinois 60612-7323, USA.; Division of Cardiology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois, USA
Mladen I. Vidovich, MD
Division of Cardiology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois, USA