A man sets up proton machines in 2014, ahead of the launch of a San Diego proton treatment center that recently rebranded as California Protons amid new ownership. Photos courtesy of California Protons

A man sets up proton machines in 2014, ahead of the launch of a San Diego proton treatment center that recently rebranded as California Protons amid new ownership. Photos courtesy of California Protons

— The region’s first and only proton therapy center has relaunched under new ownership and management after a chapter 11 bankruptcy filing protection last spring...

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