The 18 people who have had full or partial face transplants since 2005 can now do things other people take for granted, such as smelling, eating, speaking and kissing. Doctors are screening more candidates for the procedure, which is no longer considered experimental. "It's been done and it works. For a select group of patients, it is a viable treatment," said John Barker, a reconstructive medicine researcher at the University of Frankfurt in Germany and the former director of plastic surgery research at the University of Louisville.

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