Changes in Practice Guidelines in Heart Failure: Differences Acrossthe ContinentsBiykem Bozkurt, MD, PhD, FACG, FAHA, FESCTha Mary and Gordon Cain Chair & Professor of Medicine,Baylor College of MedicineSection Chief, DeBakey VA Medical Center,Director, Winters Center for Heart Failure,Associate Director, Cardiovascular Research InstituleHouston, inidi