Jacquelyn Martin, File/AP Photo
President Donald Trump on Friday said he will nominate Stephen Hahn, a well-regarded cancer specialist and hospital administrator, to lead the FDA.
If confirmed by the Senate, the top FDA post would mark Hahn's first foray into public service in a quarter of a century. He was chairman of the radiation oncology department at the University of Pennsylvania medical school for nine years until 2015, when he joined MD Anderson Cancer Center in Texas and rose to chief medical executive last year.
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His background is a sharp contrast to Trump's first FDA commissioner…