http://abcnews.go.com/Health/Wellness/us-patient-artifical-trachea-transplant/story?id=15354809
The link above talks about the first ever trachea transplant by using a human "manufactured" trachea. The only reason why I say "manufactured", is because a donator donated their trachea and it had to match the reciever's trachea exactly but it is hard to find an exact match. So, scientists lined the trachea with tissue by using the adult stem cells to make a tissue that would match the patient's.
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