1. Etiologic factors in 1294 consecutive cases of male infertility;Dubin;Fertil. Steril.,1971
2. Obstruction in the male reproductive tract;Wagenknecht,1982
3. Surgical treatment of male infertility;Lipshultz,1983
4. Azoospermia;Pryor,1983
5. Surgical approaches to male infertility;Schmidt,1976