Media type: E-Article Title: Long-term Treatment With Oral Sildenafil in Addition to Continuous IV Epoprostenol in Patients With Pulmonary Arterial Hypertension Contributor: Stiebellehner, Leopold; Petkov, Ventzislav; Vonbank, Karin; Funk, Georg; Schenk, Peter; Ziesche, Rolf; Block, Lutz-Henning imprint: Elsevier BV, 2003 Published in: Chest Language: English DOI: 10.1378/chest.123.4.1293 ISSN: 0012-3692 Keywords: Cardiology and Cardiovascular Medicine ; Critical Care and Intensive Care Medicine ; Pulmonary and Respiratory Medicine Origination: Footnote: