1. The efficiency and efficacy of IVF and GIFT;Cohen;Hum Reprod,1991
2. Bilan Mondial;World Collaborative Report,1989
3. 8th World Congress on In Vitro Fertilization and Alternate Assisted Reproduction;World Collaborative Report,1991
4. IVF and GIFT Pregnancies: Australia and New Zealand, 1986;National Perinatal Statistics Unit and Fertility Society of Australia,1987
5. IVF and GIFT Pregnancies: Australia and New Zealand, 1987;National Perinatal Statistics Unit and Fertility Society of Australia,1988