All technologies advance. A good example is a new technique employed during in vitro fertilisation (IVF) to check chromosomal abnormalities in female eggs. This increases the success rate by filtering out 'bad' eggs and reducing the probability of failure or miscarriage. The technique, real time polar body array Comparative Genomic Hybridization (CGH), has been used on one woman and a child will hopefully be born this Spring. Good news all round.