Sodium nitroprusside, an endothelium-derived relaxing factor congener, increases platelet cyclic GMP levels and inhibits epinephrine exacerbated in vivo platelet thrombus formation in stenosed canine coronary arteries - Rovin, JD; Stamler, JS; Loscalzo, J; Folts, JD (J Cardiovasc Pharmac, 1993)