1. Murad F. Cyclic guanosine monophosphate as a mediator of vasodilation. J Clin Invest 78: 1–5, 1986.
2. Beavo JA. Multiple isozymes of cyclic nucleotide phosphodiesterase. Adu Second Messenger Phosphoprotein Res 22: 1–38, 1988.
3. Lorenz KL, Wells JN. Potentiation of the effects of sodium nitroprusside and of isoproterenol by selective phosphodiesterase inhibitors. Mol Pharmacol 23: 424–430, 1983.
4. Hidaka H, Endo T. Selective inhibitors of three forms of cyclic nucleotide phosphodiesterases—basic and potential clinical applications. Adv Cyclic Nucleotide Res 16: 245–259, 1984.
5. Lugnier C, Schoeffter P, LeBec A, Strouthou E, Stoclet JC. Selective inhibition of cyclic nucleotide phosphodiesterases of human, bovine and rat aorta. Biochem Pharmacol 35: 1743–1751, 1986.