Professor Jin-Jer Chen is a cardiovascular disease expert who specializes in the diagnosis and treatment of general medical diseases, cardiovascular diseases, arrhythmia and hypertension, as well as cardiac ultrasound and cardiac catheterization. He was previously a professor of internal medicine at National Taiwan University Hospital, a researcher at the Institute of Biomedicine, Academia Sinica, a consultant cardiologist at the King's Hospital of Jeddah and King of Saudi Arabia in Saudi Arabia and a visiting professor of cardiology at the University of Toronto, Canada. Dr. Chen has conducted in-depth studies on molecular mechanisms of cardiovascular disease and molecular biology including cardiac hypertrophy, heart failure, arteriosclerosis and hypertension and published over 150 articles in internationally renowned journals.