Amid a report in the Wall Street Journal about a potential Walgreens Boots Alliance (WBA - Get Report) takeover of AmerisourceBergen (ABC - Get Report) , TheStreet's founder and Action Alerts PLUS Portfolio Manager Jim Cramer said:

"[Walgreens] may think they can diversify away from the front of the store being attacked by Amazon (AMZN - Get Report) , but Amazon's going after the back of the store."

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