1. Trounson A, Leeton J, Besanka M, Wood C, Conti A. Pregnancy established in an infertile patient after transfer of a donated embryo fertilized in vitro. Br Med J. 1983; 286: 835–838.
2. Sauer MV, Paulson RJ, Lobo RA. Pregnancy after age 50: application of oocyte donation to women after the natural menopause. Lancet. 1993; 341: 321–323.
3. Seibel MM, Zilberstein M, Seibel SG. Becoming parents after 100? Lancet. 1994; 43–603.
4. Seibel MM, Crockin SL. Family Building through Egg and Sperm Donation: Medical, Legal, and Ethical Issues. Sudbury, Mass: Jones & Bartlett; 1996.
5. Seibel MM, Kiessling A. Compensating egg donors: equal pay for equal time? N Engl J Med. 1993; 328: 737.