1. Fetal nuchal translucency: ultrasound screening for chromosomal defects in first trimester of pregnancy;Nicolaides, K.H.; Azar, G.; Byrne, D.; Mansur, C.; Marks, K.;BMJ,1992
2. Chromosomal disorders;Tolmie, J.L.,1989
3. Pregnancy established in an infertile patient after transfer of a donated embryo fertilised in vitro;Trounson, A.; Leeton, J.; Besanko, M.; Wood, C.; Conti, A.;BMJ,1983
4. Pregnancies after The value of the test can be assessed by Bayes's theorem. In its simplest form this compares the probability before the test is done (the prior replacement of fresh and frozen-thawed embryos in a donation program;Devroey, P.; Braeekman, P.; Camus, M.,1987
5. Injuries sustained on "bouncy castles.";Singer, G.; Freedman, L.S.;BMJ,1992