RT Journal Article SR Electronic T1 Bosentan and improved pulmonary endothelial function in pulmonary arterial hypertension JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 1483 OP 1485 DO 10.1183/09031936.00083910 VO 36 IS 6 A1 R. Ilsar A1 J. Levitt A1 M.K.C. Ng A1 L. Kritharides A1 M.R. Adams A1 D.S. Celermajer YR 2010 UL http://erj.ersjournals.com/content/36/6/1483.abstract AB