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FILE - This Oct. 14, 2015, file photo shows the Food and Drug Administration campus in Silver Spring, Md. The Food and Drug Administration warned a New York fertility doctor on Friday, Aug. 4, 2017, to stop marketing an experimental procedure that uses DNA from three people — a mother, a father and an egg donor — to avoid certain genetic diseases. (AP Photo/Andrew Harnik, File)

Doctor told to stop marketing 3-person baby technique

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