Her son was dying, but his rare cancer made it difficult to get the right drug

Science

Her Son Was Dying, But His Rare Cancer Made It Difficult To Get The Right Drug

By CBS News

Eighteen months after his initial diagnosis, chemotherapy hadn't slowed 21-year-old Mason Henderson's rare brain tumor, which had spread to his spinal fluid. So he left his home in southeastern Texas to spend three weeks in a clinical trial in New Yo ...Read more