1. Alvarez R, Taylor A, Fazzari JT, Jacobs JR (1981) Regulation of cyclic AMP metabolism in human platelet. Sequential activation of adenylate cyclase and cyclic AMP phosphodiesterase by prostaglandins. Mol Pharmacol 20:302
2. Andersson KE, Holmquist F, Wanger G (1991) Pharmacology of drugs used for treatment of erectile dysfunction and priapism. Int J Impotence Res 3:155
3. Carati CJ, Creed KE, Keogh EJ (1987) Autonomic control of penile erection in the dog. J. Physiol 384:525
4. Chen KK, Chan YH, Chang LS, Chen MJ, Chan HH (1992) Intracavernous pressure as an experimental index in a rat model for the evaluation of penile erection. J Urol 147:1124
5. Domer FR, Wessler G, Brown RL, Charles HC (1978) Involvement of the sympathetic nervous system in the urinary bladder internal sphincter and in penile erection in anesthetized cat. Invest Urol 15:404