Barst, Robyn J Sitaxsentan therapy for pulmonary arterial hypertension. [electronic resource] - American journal of respiratory and critical care medicine Feb 2004 - 441-7 p. digital Publication Type: Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 1073-449X Standard No.: 10.1164/rccm.200307-957OC doi Subjects--Topical Terms: AdolescentAdultAgedAnaerobic ThresholdDouble-Blind MethodEndothelin Receptor AntagonistsExercise TestExercise ToleranceFemaleHemodynamicsHumansHypertension, Pulmonary--drug therapyIsoxazoles--adverse effectsMaleMiddle AgedOxygen ConsumptionThiophenes--adverse effects