1 Director, Advanced Heart Failure & Pulmonary Hypertension Programs, Section of Heart Failure/Transplant/MCS & Pulmonary Hypertension, Echocardiography Staff, Allegheny General Hospital, Associate Professor of Medicine, Drexel University College of Medicine, 320 East North Avenue, Pittsburgh, PA 15212-4772, United States. Electronic address: amresh.raina@ahn.org.