SERAPHIN haemodynamic substudy: the effect of the dual endothelin receptor antagonist macitentan on haemodynamic parameters and NT-proBNP levels and their association with disease progression in patients with pulmonary arterial hypertension - Galiè, Nazzareno; Jansa, Pavel; Pulido, Tomás; Channick Richard N.; Delcroix, Marion; Ghofrani, Hossein-Ardeschir; Le Brun, Franck-Olivier; Mehta, Sanjay; Perchenet, Loïc; Rubin Lewis J.; Sastry, B.K.S.; Simonneau, Gérald; et al. (European Heart Journal, 2017)