A clinical policy bulletin from insurer Aetna (NYSE:AET) yesterday has shares of Questcor (NASDAQ:QCOR) under meaningful pressure today. In this video, Motley Fool health care analyst Brenton Flynn tells us why he thinks this might be a bit of an overreaction given that we heard the very same news from Aetna only months ago, and last night's announcement was only a reiteration of its policy.

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