1 Pulmonary Hypertension Program, MedStar Heart and Vascular Institute, Georgetown University School of Medicine, Washington, DC. Electronic address: Mrinalini.Krishnan@medstar.net.
2 Division of Cardiology, University of California San Francisco, Medical Center, San Francisco, CA.
3 Pulmonary Hypertension, Right Heart Failure, CTEPH Program, Temple Heart & Vascular Institute and Lewis Katz School of Medicine, Philadelphia, PA.