Cardiology Division, Assaf Harofeh Medical Center, Zerifin, Israel. Sackler School of Medicine, Tel Aviv University, Tel-Aviv, Israel. Schulich Heart Centre, Division of Cardiology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada. Cardiology Department, Lady Davis Carmel Medical Centre, Haifa, Israel. Faculty of Life Sciences, Department of Zoology, Tel-Aviv University, Tel-Aviv, Israel.