1. Gonadal effects of vasectomy and vasoligation;Sackler;Science,1973
2. Effects of vasectomy on endocrine and hepatic function;Easterday;Res Commun Chem Pathol Pharmacol,1973
3. Long term effect of vasectomy on reproduction and liver function;Nickell;Fed Proc,1974
4. Plasma testosterone levels in man before and after vasectomy;Bunge;Invest Urol,1972
5. Pituitary-gonadal function before and after vasectomy;Wieland;Fertil Steril,1972