1. A Ra tional Approach to the Evaluation of Infertility;Behrman,1968
2. The Sims-Huhner test;Cohen;Ann NY Acad Sci,1962
3. Differentiation of sex as determined by ovulation timing;Cohen;Int J Fertil,1967
4. Sperm survival at estimated ovulation time;Cohen;Fertil Steril,1951
5. Experiences with Human Pituitary Gonadotropin;Gemzell,1966