Nils Witt, MD, PhD is an Interventional Cardiologist, Senior Consultant in the Department of Cardiology at the Sodersjukhuset. He received a Doctor of Medicine degree from the Karolinska Institute. His research interests are Cardiology, Interventional Cardiology, Congenital Heart Defects, Coronary Artery Disease, Heart Failure, Valvular Heart Disease, Electrophysiology.