Biogen MS Pill Tecfidera Gains U.S. Approval

March 27 (Bloomberg) -- Biogen Idec, the maker of multiple sclerosis drugs Avonex and Tysabri, won U.S. approvalfor its first pill for the disease, Tecfidera. Adam Johnson reports on Bloomberg Television's "Street Smart." (Source: Bloomberg)

What to Watch for in Janet Yellen's Testimony
55:17 - Columbia Business School Dean Glenn Hubbard and Bloomberg's Mike McKee preview today's Capitol Hill testimony from Federal Reserve Chair Janet Yellen. They speak on "Bloomberg ‹GO›." (Source: Bloomberg)
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