This spring marks the fourth year of treating patients at the McLaren Proton Therapy Center, part of the Karmanos Cancer Network, in Flint. Since 2018, the capacity of the center has grown and proton therapy experts are able to treat many more patients, with plans to expand during the next two years. Hundreds of patients have gone through proton therapy treatment, including the 500 th patient, who completed treatment for glioblastoma, a type of brain cancer, in late March 2022. “I have a friend on the e...