Science and technology

Associated Press
Kaiba Gionfriddo plays with his mother, April outside his Youngstown, Ohio home Tuesday, May 21, 2013. Born with a birth defect that caused the boy to stop breathing every day, he can now breathe normally, with a first-of-a-kind biodegradable airway made by Michigan doctors using plastic particles and a 3-D laser printer. (AP Photo/Mark Stahl)

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