Bosentan for treatment of inoperable chronic thromboembolic pulmonary hypertension: BENEFiT (bosentan effects in inoperable forms of chronic thromboembolic pulmonary hypertension), a randomized, placebo-controlled trial - Jaïs,X.; D'Armini,A.M.; Jansa,P. (J Am Coll Cardiol, 2008)