Dr. Annika Kinch Westerdahl, Ph.D. is a Head of the Health Care Unit at Danderyd's Hospital. His Clinical Interests are Defibrillators, Heart Failure, Atrial Fibrillation, Pacemakers, Clinical Cardiology, Chronic Heart Failure, Congenital Heart Defects, Coronary Artery Disease, Valvular Heart Disease, and Electrophysiology.