Last month, demonstrators protested the possibility of Walgreens moving its corporate headquarters overseas at a Chicago location of the pharmacy. Scott Olson/Getty Images hide caption

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Walgreens is one of several pharmacies that have partnered with hospitals to help manage patients after they've returned home. Joe Raedle/Getty Images hide caption

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A customer walks out of a Walgreens store in New York City. Adam Rountree/Bloomberg via Getty Images hide caption

itoggle caption Adam Rountree/Bloomberg via Getty Images