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Questcor Plummets After Aetna Limits Coverage of Company Drug
Wednesday, September 19, 2012 - 12:20pm | 169Aetna (NYSE: AET) said on Wednesday that it would limit coverage of a multiple sclerosis and infant seizure drug from Questcor Pharmaceuticals (NASDAQ: QCOR). The news caused shares of Questcor to plunge as much as 56 percent in morning trading, the largest one-day drop for the stock since 1993. At...