Decreased whole body endogenous nitric oxide production in patients with primary pulmonary hypertension - Demoncheaux, EAG; Higenbottam, TW; Kiely, DG; Wong, JM; Wharton, S; Varcoe, R; Siddons, T; Spivey, AC; Hall, K; Gize, AP (JOURNAL OF VASCULAR RESEARCH, 2005)