1 Department of Cardiology, Houston Methodist DeBakey Heart & Vascular Center, Houston, Texas; Department of Cardiology, Alexandria University, Alexandria, Egypt. Electronic address: Yehiatri@gmail.com.
2 Department of Internal Medicine, Michigan State University, East Lansing, Michigan.
3 Department of Cardiology, Alexandria University, Alexandria, Egypt.
4 Department of Cardiology, Alexandria University, Alexandria, Egypt; Cardiology and Angiology Unit, Medical Research Institute, University of Alexandria, Egypt.