10/21/2011 01:36 pm ET Updated Dec 21, 2011

Animal Transplants Might Be Coming 'Soon'

Using animals as a source of organs for transplantation into humans was once one of medicine's next big things - a solution to transplant waiting lists. However, there have been problems with rejection - and recently stem cells have been grabbing the spotlight. But some researchers are now saying that transplants from animals "could soon become a reality", but not necessarily as originally expected.

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