Effects of long-term bosentan in children with pulmonary arterial hypertension.
Rosenzweig EB, Ivy DD, Widlitz A, Doran A, Claussen LR, Yung D, Abman SH, Morganti A, Nguyen N, Barst RJ. Effects of long-term bosentan in children with pulmonary arterial hypertension. J Am Coll Cardiol. 2005 Aug 16; 46(4):697-704.