1. Births in Great Britain resulting from assisted conception, 1978-87;MRC Working Party on Children Conceived by In Vitro Fertilisation;Br Med J,1990
2. AIHW National Perinatal Statistics Unit, Fertility Society of Australia. Assisted conception in Australia and New Zealand 1990,1992
3. Medical Research International, Society of Assisted Reproduction Technology (SART), The American Fertility Society. In vitro fertilization-embryo transfer (IVF-ET) in the United States;990 results from the national IVF-ET Registr,1992
4. Births in Israel resulting from in-vitro fertilization/embryo transfer, 1982-1989: National Registry of the Israeli Association for Fertility Research;Friedler;Hum Reprod,1992
5. Pregnancy complications and short-term follow-up of infants after in vitro fertilization and embryo transfer (IVF/ET);Wennerholm;Acta Obstet Gynecol Scand,1991