Ethics take center stage at fertility conference

By Michael Kahn

updated 2:08 p.m. ET July 7, 2008
BARCELONA - A U.S. researcher's argument that twins should be the goal of in vitro fertilization drew opposition from many researchers on Monday who warned of the risks of multiple pregnancies.

Presenting a study at the annual meeting of the European Society of Human Reproduction and Embryology, Norbert Gleicher said twins are a solution for infertile couples who want more than one child.

His review of previous studies found that it is cheaper for couples to have twins because it can cut the number of treatments and the risk is not significantly greater for mother and child