Plasma asymmetrical-dimethyl-arginine affects eNOS vascular superoxide radical production and nitric oxide bioavailability in human arteries and veins - Antoniades, C; Shirodaria, C; Leeson, P; Tousoulis, D; Antonopoulos, A; Ratnatunga, C; Pillai, R; Van-Assche, T; Stefanadis, C; Channon, K (2008)