Assessing risk in pulmonary arterial hypertension: what we know, what we don't

Affiliations

• ¹ Cardiovascular Medicine, Allegheny General Hospital, Pittsburgh, PA, USA RBENZA@wpahs.org.
• ² Pulmonary and Critical Care, Boston Medical Center, Boston, MA, USA.
• ³ University of California San Francisco, Dept of Medicine, Cardiology, Pulmonary Hypertension Clinic, San Francisco, CA, USA.
• ⁴ Actelion Pharmaceuticals US, Inc., South San Francisco, CA, USA.
• ⁵ Cardiology, Heart and Vascular Institute, Falls Church, VA, USA.