Transition from post-capillary pulmonary hypertension to combined pre- and post-capillary pulmonary hypertension in swine: a key role for endothelin. - van Duin RWB; Stam K; Cai Z; Uitterdijk A; Garcia-Alvarez A; Ibanez B; Danser AHJ; Reiss IKM; Duncker DJ; Merkus D (The Journal of physiology, 2019)