Sex selection and preimplantation genetic diagnosis.

In 1994, the Ethics Committee of the American Society of Reproductive Medicine concluded, although not unanimously, that whereas preimplantation sex selection is appropriate to avoid the birth of children with genetic disorders, it is not acceptable when used solely for nonmedical reasons. Since 1994, the further development of less burdensome and invasive medical technologies for sex selection suggests a need to revisit the complex ethical questions involved.