Leading pharmacy chains Walgreen and Rite-Aid recently released their monthly sales figures for October 2012.

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Pharmacy chains confront the same challenge as mass retailers and grocery stores: To grow, they've got to expand.

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Companies like MinuteClinic, which employ nurse-practitioners in pharmacy chains, threaten to disrupt physicians' practices with convenient lower-cost care for consumers.

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The retail pharmacy chains.

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The compounding pharmacy scandal has caused still more collateral damage and, this time, it involves one of the largest supermarket chains in the US. Who are we talking about?

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