I have 25 years of experience and specialize in the field of cardiovascular diseases, with specific knowledge of heart attack, heart failure, heart transplantation and hypertension. I have published on such topics as heart failure, heart transplantation, coronary artery disease, cardiomyopathy, exercise stress testing and hemodynamics, and peripheral arterial disease. I have testified on exercise stress testing, heart attack, heart transplantation and cardiomyopathy.