For the record

Correction: Because of an editing error, a headline on a brief in the Saturday Business section about Stryker Corp. misrepresented how many warning letters the Food and Drug Administration had sent the company. It was the third warning letter in 14 months, but only the first concerning Stryker's facility in Hopkinton.

Correction: Because of an editing error, a Page One story yesterday on the Democratic primary race incorrectly quoted Barack Obama on how he would respond to an attack against Israel by Iran. Obama said he would "act forcefully and appropriately on any attack against Israel, nuclear or otherwise."

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