Right ventricular oxygen delivery as a determinant of right ventricular functional reserve during exercise in juvenile swine with chronic pulmonary hypertension. - Cai Z; van Duin RWB; Stam K; Uitterdijk A; van der Velden J; Vonk Noordegraaf A; Duncker DJ; Merkus D (American journal of physiology. Heart and circulatory physiology, 2019)