1. Selected aspects of the contraceptive practices of unmarried university students;Bauman;Am J Obstet Gynecol,1970
2. The use of estrogen as a postcoital contraceptive in North Carolina-trick or treatment;Crist;NC Med J,1973
3. Studies on the duration of egg transport in the human oviduct;Croxatto;Part I. The time between ovulation and egg recovery from the uterus in normal women. Fertil Steril,1972
4. The effect of large doses of estrogens post coitum in 2000 women;Haspels;Eur J Obstet Gynaecol Reprod Biol,1973
5. Post-coital contraception with d-norgestrel;Kesseru;Contraception,1973