Nicholas G Kounis1, George D Soufras2, Grigorios Tsigkas2, George Hahalis2. 1. Department of Cardiology, University of Patras Medical School, Patras, Rio, Achaia, Greece. Email: ngkounis@otenet.gr. 2. Department of Cardiology, University of Patras Medical School, Patras, Rio, Achaia, Greece.