Dr Diane De Neubourg, from the Centre for Reproductive Medicine, Antwerp, presented work showing that single embryo transfer produces babies that are healthier than those born after multiple implantations.
Earlier this week Wilson posted a video online showing a single shot being fired from "The Liberator, " a plastic handgun that, with the exception of a metal firing pin and a piece of metal included to comply with the Undetectable Firearms Act, was assembled entirely from parts made with a 3-D printer.