Kelley Mack of 'The Walking Dead' passed away at 33 following her battle with glioma. Learn about her diagnosis symptoms and ...

Actor Kelley Mack, best known for playing Addy on "The Walking Dead," died over the weekend, her family announced. She was 33 ...

Amphiregulin and radiation therapy also increased levels of CD47, a so-called “don’t-eat-me” protein on tumor cells that helps cancer evade the immune system, results show.