Severe Pulmonary Arterial Hypertension Is Characterized by Increased Neutrophil Elastase and Relative Elafin Deficiency

Andrew J. Sweatt, Kazuya Miyagawa, Christopher J. Rhodes, Shalina Taylor, Patricia A. del Rosario, Andrew Hsi, François Haddad, Edda Spiekerkoetter, Michal Bental-Roof, Richard D. Bland, Emilia M. Swietlik, Stefan Gräf, Martin R. Wilkins, Nicholas W. Morrell, Mark R. Nicolls, Marlene Rabinovitch, Roham T. Zamanian