CHICAGO (July 8, 20130—Two-year-old Hannah Warren, who received a transplanted windpipe grown from her own stem cells has died.
Hannah, who was born without a windpipe, was the youngest patient in the world to undergo the experimental treatment.
Hospital spokeswoman Shelli Dankoff says Hannah died Saturday at Children's Hospital of Illinois in Peoria.
Her family asked for privacy.
The hospital said in a statement that Hannah couldn't "overcome additional health issues that were identified as her care progressed."
The stem cells from Hannah's bone marrow were seeded in a lab onto a plastic scaffold, where it took a few days for them to multiply and create a new windpipe, which was implanted April 9.
Hannah was born in South Korea.
She and her family traveled to Illinois for the surgery.
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