Dimitrios N. Nikas received his Ph.D. from the Ioannina Medical School, Ioannina University, Ioannina, Greece. He is an Interventional Cardiologist in the Department of Cardiology, Medical School, University of Ioannina. His research interests mainly focus on Takotsubo syndrome, myocardial perfusion imaging, myocardial ischemia, acute coronary syndromes, cardiology, interventional cardiology, structural heart disease, peripheral artery disease, and carotid stenting.