Today a man in Finland has a new jaw, thanks to specially-treated stem cells harvested from his fatty tissues and grown in his stomach. It's not the first time researchers have grown bones inside a stomach (we featured a picture of some bioengineered teeth grown in rats' stomachs), but it's the first successful surgery of this type with a human. A group of Finnish doctors today announced the transplant was successful and that nobody looking at the patient would be able to tell that he'd had the procedure done.
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