3Moncada S,Palmer R M,Higgs E A.Nitric oxide:physiology,pathophysiology,and pharmacology[J].Pharmacol Rev,1991,43(2):109-142.
4Bradydne JE,Quzyle JM,Standen NB et al.Role of potassium channels in the vascular response to endogenous and pharmacological vasodilators[J].Blood Vessels,1991,28:147-153.