RT Journal Article SR Electronic T1 Trends in pulmonary arterial hypertension JF European Respiratory Review JO EUROPEAN RESPIRATORY REVIEW FD European Respiratory Society SP 7 OP 12 DO 10.1183/09059180.00011103 VO 18 IS 111 A1 Souza, R. A1 Jardim, C. YR 2009 UL http://err.ersjournals.com/content/18/111/7.abstract AB