One expert told Newsweek that the takeover could result in even more store closures for the embattled pharmacy chain.

As Tribune photo editor Marianne Mather looked through the Tribune’s photo archive she realized that much of the city’s history has been intertwined with the Walgreens chain.

The FDA tested 95 products containing benzoyl peroxide, an ingredient widely used to treat acne that can form benzene as a byproduct. It found that six products could have more benzene than usual.