1. -Andersson K E, Holmquist F: Mechanism for contraction and relaxation of human penile smooth muscle. Int. J. Impotence Res., 1991, 2: 209–226
2. -Azadzodi, K. M., de Tejada, I. S.: Hypercholesterolemia impairs endothelium dependent relaxation of rabbit corpus cavernosum smooth muscle. J. Urol, 1991, 145: 238
3. -Benard F, Stief C G, Bosch R, Aboseif S., Lue T F, Tanagho E A: Neuropeptide Y: in vivo study of its effects on erection. J. Urol., 1989, 141: 185A.
4. -Benard F., Diederichs W., Stief C. G., Bosch R., Aboseif S., Lue T. F., Tanagho E. A.: The effect of epinephrine on erection. J. Urol. 141, 1989: 439A
5. -Diederichs W., Stief C. G., Lue T. F., Tanagho E. A.: Sympathetic inhibition of papaverine induced erection. J. Urol., 1991, 146: 195–199