1. Department of Internal Medicine, Rochester General Hospital, Rochester, NY, USA;
2. Department of Cardiovascular Medicine, Ain Shams University, Cairo, Egypt;
3. Sidney Kimmel Medical College at Thomas Jefferson University/Christiana Care Health System, Newark, DE, USA;
4. Division of cardiovascular Medicine, University of Kentucky, Lexington, KY, USA;
5. Department of Cardiovascular Medicine, University of Arkansas for Medical Sciences, Little Rock, AR, USA